A+ Dion Exam 1 Flashcards by Don Song

Port # for HTTP

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Port # for HTTPS

443

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Port # for SMB/CIFS

445

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Port # for TFTP

Port 69

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When is a static IP address used

When the DHCP server is disabled

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An APIPA address is also known as

Link Local Address

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What USB connection can support data rates up to 480 Mbps

USB 2.0

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What USB connection supports data rates up to 12 Mbps

USB 1.1 and draws 2.5W

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USB 3.0 is also known as

SuperSpeed and supports data rates up to 5 Gbps and draws 4.5W

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USB 3.1 is also known as

SuperSpeed+ and supports data rates up to 10 Gbps and draws 4.5W

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Which cellular technology is comprised of HSPA+ and EV-DO

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What component causes double images or ghost image printing on laser printer

Drum unit

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What should you do with a burn in on a plasma TV

Replace plasma TV

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Security updates, patches and upgrades can reconfigure what during Windows security update

Network card drivers

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How many pins can SATA connectors have

15 pin and 7 pin

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How many pins can Thunderbolt connectors have

20 pin and 24 pin

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How many pins can SCSI connector have

50 pin and 36 pin

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What converter can convert analog signal to digital signal

VGA to DVI-D

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What kind of network cable runs a TV signal between two buildings

Coaxial

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What is an IPv6 address of ::1

Loopback address

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What is an IPv4 address of 127.0.0.1

Loopback address

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Hard disk drives are cheaper and come in far bigger sizes than SSDs. True or false

True

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What type of connector is used widely with single mode fiber optic systems

SC connectors

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What type of connector is used with coaxial cables

F type connector

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What DC voltage is not found within laser printer when it converts AC power into DC power for use

-24 VDC

How do you get past the administrative password screen on a laptop if you don’t have the password

To clear CMOS, remove the CMOS battery, wait a few minutes, reinsert the battery, and then power on the laptop

What does a steady light indicate on a Network Interface Card

No network activity

What does a blinking light indicate on a Network Interface Card

There is network activity and data is passing over the NIC to the network

What is the best device to stop outside hackers from reaching your internal network

Intrusion Prevention System (IPS)

What port # does the Syslog use

514

What does the error at boot time “OS not found indicate”

MBR or GPT is corrupted or faulty

How should you react to “OS not found” error at boot time

Reboot into the Windows recovery mode and use bootrec/fix boot command to fix GPT

What is the only protocol used to send emails

SMTP

What is the port # for POP3

Port # 110

What is the port # for IMAP

Port # 143

What is the port # for SMTP

Port # 25

What is the port # for HTTPS

Port # 443

What is the port # for the Service Location Protocol

Port # 427

What is the port # for LDAP

Port # 389

What is the port # for SMB

Port # 445

What can result in data breach caused by data remnants for using a cloud service provider

Rapid elasticity can be a security threat to your organization’s data due to data remanences.

What cloud services should an organization choose in order to deliver virtual desktops to end-users over the internet on a per-use license basis

Desktop as a Service

What type of cabling can prevent electrical interferences or cross-talk

Shielded Twisted Pair

A virtual machine can be restored much faster than a physical server. True or false

True

What needs reconfiguring if only a few hundred unique colors are being shown in a desktop’s background picture

Color depth

What Intel CPU technology allows the processor to utilize two logical cores

Hyper-threading

What cloud computing concept focuses on the replacement of applications and programs on a customer’s workstation with cloud-based resources

SaaS

What is a touch sensitive glass panel that covers the LCD in a touchscreen assembly

Digitizer

What type of panels are used on laptops

LCD

What microprocessor is used on dedicated video adapter cards or within a CPU with integrated graphics capability to handle the mathematical calculations required to create 3D graphics

GPU

What networking hardware is used to deliver broadband internet access using a hybrid fiber-coaxial (HFC) infrastructure

Cable modem

What cable does DSL use

Twisted pair copper wire or ordinary telephone lines

What device connects fiber optics cables to other types of wiring such as Ethernet and phone lines by converting the signal from optical to electrical and vice versa

Optical Network Terminal (ONT)

Which technology has the thinnest and lightest laptop displays

OLED

What are the 2 most important things to consider when selecting a power supply replacement for a gaming station with multiple hard drives and dedicated graphics card

Wattage rating and number/type of connectors

What wireless technology uses UHF radio waves in the industrial, scientific and medical radio bands from 2.402 GHz to 2.480 GHz

Bluetooth

What wireless technology needs a direct line of sight for communication

Infrared

What causes the Pinwheel of Death on a macOS system

Memory failure or memory corruption

What type of virtualization environment should not have access to the internet

Internal. Each VM can communicate with each other and the host but there is no access to the internet

In a private virtualization environment, can VMs use a switch to communicate with the host

In a localhost environment, can VMs communicate with other VMs or with the host

No it can only communicate with itself

Can Android devices use Google Workspace, Flickr, and Office 365

Yes

What type of connectors are used to terminate Cat-5e network cables

RJ-45

How many pins does an RJ-45 have

8-pins

What are used to terminate cables used for phone lines

RJ-11

What is a connection-oriented protocol that utilizes TCP

HTTPS

What port # does HTTPS use

Port # 443

What UDP ports does SNMP utilize

UDP Ports 161 and 162

What UDP port uses TFTP: Trivial File Transfer Protocol

UDP port 69

What UDP ports does DHCP utilize

UDP ports 67 and 68

What causes a Operating System Not Found Error

BIOS does not detect HDD; MBR is corrupted; incompatible partition is marked as Active; HDD is damaged; a partition containing MBR is no longer active

What color are USB 3.0 ports

Red or blue

What is another name for USB 3.0 and what is the speed and wattage

SuperSpeed and 5Gbps and 4.5W

What is another name for USB 3.1 and what is the speed and wattage

SuperSpeed+ and 10Gbps and 4.5W

What is the speed of USB 1.1

12Mbps

What is the speed of USB 2.0

480Mbps

What are PCIe x 1 slots used for

Network Interface Cards and Wi-Fi network cards

What type of cable should you connect to an eSATA port

Shielded cable

What is the speed of eSATA

6 Gbps

If the LCD touch screen is not working, but the display is not cracked, this indicates what is incorrect or defective

Digitizer settings is incorrect or digitizer is defective

A DHCP server provides

Dynamic IP addresses, reserved IP addresses based on host’s MAC address, and location of DNS servers

What is a server that hosts the database of domain names and the IP addresses mapped to those names

DNS server

What is a server used to authenticate, authorize, and account for users and their actions

AAA server

This server acts as an intermediary between a client requesting a resource and the server that provides the resource

Proxy server

What port does LDAP use

Port 389

What port does SLP or Service Location Protocol use

Port 427

What port does RDP use

Port 3389

What UDP port does DNS use

UDP port 53

What is used to capture logs from different devices

Syslog server

What port # does DHCP use

Port 67 and 68

What can a mobile device use to identify its location

GPS, cellular, Bluetooth, or Wi-Fi radios

What do microwave links require

Direct line of sight between antennas to maintain a strong and effective link

What is the problem with a computer that won’t boot up and fans spin normally

Problem with power supply, motherboard, or overheating

What UDP ports does SNMP use

UDP ports 161 and 162

What port does SMTP use

Port 25

What port does NetBIOS over TCP/IP use

Ports 137 (name services) and 139 (session services)

What device has same functionality as a personal computer and can be operated with a single hand

Smartphone

What is the FTP port for connection

Port 21 control Port 20 data transfer

What is the FTP port for data

Port 20

What is an open source wireless communication protocol for home automation that operates in the 2.4 GHz frequency

Zigbee

What is a proprietary wireless communication protocol used for home automation that operates in the 800 MHz and 900 MHz frequency ranges

Z-wave

What is the most important consideration for a computer that will be traveling worldwide

Power supply with dual voltage selection capability for maximum compatibility worldwide

What causes a flickering image on a projector

Display cable between the laptop and the projector is not connected securely

Should a printer be connected to the guest wireless network or corporate wireless network for workstations to be able to reach the printer

Corporate wireless network

What is the IPv6 address for the localhost

::1

Where are you likely to find the antenna wires within a laptop or mobile device

Positioned around the display panel

What rpm hard disk drive for a low-end office desktop

5400 rpm HDD

What virtualization concept refers to a VM’s ability to have memory allocated for its use

Resource pooling

This allows an application to be delivered to a workstation from the cloud

Virtual application streaming

What ports does SMB use

Port 445 Originally ran on top of NetBios Port 139

What port does Network Time Protocol use

Port 123

What port does IMAP use

Port 143

What port does Syslog use

Port 514

The 5.0 GHz frequency is less effective at penetrating solid surfaces than 2.4 GHz. True or false

True

Does 2.4 GHz or 5.0 GHz have a longer wavelength

2.4 GHz has a longer wavelength

Does the 2.4 GHz or 5.0 GHz support higher data rates

5.0 GHZ support higher data rates due to lower levels of congestion and interference. The 5.0 GHz has more individual channels giving it less congestion and interference

Which is the most dangerous type of threat when using virtualization

VM escape refers to malware running on a guest OS jumping to another guest or host

What is the uncontrolled deployment of more and more VMs

VM sprawl

A VM can be configured to have multiple vNICs. True or false

True

This is an older cable interface that used to be used for transmission of data between the motherboard and hard drives and CD-ROM

IDE

How many pins does an IDE cable have

40-pin ribbon cable

What is the speed of an IDE cable

50 Mbps

IDE cables are also known as

PATA cables

How many watts can a USB 3.0 support

4.5 watts

Which command provides you with a means to flush and reset the contents of the DNS client resolver cache

Ipconfig/flushdns

In which protocol is the mail downloaded to the device and the mail is removed from the server’s mailbox by default

POP3 or port 110

Which protocol provides a means for a client to access email messages stored in a mailbox on a remote server using port 143. The message persists on the server after the client has downloaded them

IMAP port 143

What protocol is used to send email between hosts on the internet

SMTP port 25

What is the port # for HTTPS

443

What can cause a screen to become squished, distorted, or have black vertical or horizontal lines filling up the excess space

Incorrect resolution

What are 2 network storage solutions

NAS or SAN

What can cause debris to be displayed on the projector screen

Artifacts on the protective glass and a failing bulb

What can cause system reboots, diminished system performance, and slow loading of websites and programs

A bad or faulty RAM module

What can a user do when an iPad application is hung and locked up

Close all applications, shut down the iPad, power on the iPad, then launch the iPad again

What is an indication of a bad power supply

A burning smell

What is indicative of a distended capacitor

A foul odor

What can cause a computer to reboot continuously

Hardware failure or system instability

What describes how many times the image on the monitor changes per second

Refresh rate

What kind of sound does a failing hard drive make

Clicking noises

What kind of sound does a failing cooling fan make

Whirring or grinding noise

How do you rebuild a failed hard drive in a RAID 5

Replace the hard drive and rebuild the RAID

What breaks often on a laptop and if broken , the laptop cannot charge or receive power from the power adapter or wall outlet

DC jack

Which Wi-Fi channel in the 2.4 GHz frequency band are only supported in Japan and Europe due to government regulations

Channel 13

Connecting a laptop to a smartphone via Wi-Fi and smartphone to internet using the phone’s built-in cellular modem

Hotspot

If you cannot access a website using its domain name (diontraining.com) but can successfully ping a remote server using its IP address (Google 8.8.8.8) indicates what

It indicates your laptop has not been properly assigned a DNS server to be used by the DHCP server

Which technology would allow your laptop to share content with a mobile device wirelessly using touchless transfer

NFC (4cm together)

What provides the ability to add wireless networking or cellular data cards to a laptop

Mini PCIe expansion cards

What is the default standard, 24-pin connector for USB 3.1

USB-C

What is the process of distributing a set of tasks over a set of resources to make their overall processing more efficient

Load balancing

What is the ability of a system to continue operating without interruption when one or more of its components fail

Fault tolerance

What must be installed between two VLANs to allow connections to be routed between them

Router or other gateway device

What is the APIPA address range

169.254.1.0—169.254.254.255

When is a computer assigned an APIPA address

When there is no DHCP server available

What are the private IP address ranges

10.x.x.x 172.16-31.x.x 192.168.x.x

What is the localhost IP address

127.0.0.1

What is the frequency for 802.11g

2.4GHz

What is the frequency for 802.11g

2.4GHz

What is the frequency for 802.11g

2.4GHz

What ports does DHCP utilize

UDP ports 67 & 68

What ports does SNMP utilize

UDP ports 161 & 162

What VM network configuration prevents a VM from communicating with the internet

Internal Network. VMs can communicate with each other and the host machine in an Internal network

Who can VMs communicate with in a private network

VMs can communicate with each other using the switch but not the host

How do you fix an iPhone that is frozen, hung up, or locked up

Hold down the power and volume down buttons simultaneously for 10 seconds and then slide to power off

Which RAID provides the best speed and redundancy for a backup and disaster recovery server

RAID 10 or RAID 1+0

What causes a CPU to overheat and shut down after operating for a short period of time

The CPU cooling fan isn’t working properly, the heat sink is dislodged, or the thermal paste breaks down

Which virtualization is supported by most modern Intel processors

What is the simplest and most cost efficient way to allow other network users to access a printer if the printer does not have an RJ-45 or Wi-Fi adapter available

Establish a print share on the local host

What network standard allows networking device to provide up 15.4W of power to a connected device

802.3af or PoE at 100 meters

What network standard allows a networking device to provide up to 25W of power to a connected device

802.3at or Poe+ at 100 meters

The 802.11ac uses what wireless frequency

5GHz

The 802.11s defines usage of what technology

Wireless mesh technology

What is the most convenient and cheapest way to connect a legacy printer to the network directly

Buy an RS-232 to RJ-45 adapter

Networks do not have USB connections. True or false

True

What type of connector can be inserted into the port in either direction without damaging the port

USB-C is a 24-pin connector

FireWire and USB-B connectors are what shape

D-shaped connectors

USB-A connector are what shape

Rectangular shaped connector

What is the name of the networking protocol used by macOS to find available printers on the network to use

Bonjour

The smell of burning plastic and the computer not turning on are symptoms of what issue

Power supply issue

What tool should you use for a burning smell from a computer

Power supply tester

What does a user need to use a printer

Adequate security permissions to the printer

What is most likely reason an SSID is not being displayed within Windows

The SSID is disabled on the router so the wireless network name will not be broadcasted to any available devices within range

What frequency band does 802.11b and 802.11g use

2.4GHz

What backup solution comes with Microsoft Office 365 subscription package

OneDrive

What type of networking hardware connects two dissimilar networks such as connecting a LAN to a WAN

Router

What is a network device that receives incoming data to buffer, then the destination MAC address is compared with an address table so that data is only sent out to the port with the corresponding MAC address

Switch

What type of memory module is installed in a laptop

SODIMM

What sends a repeating signal over one end of a cable that can be detected by a probe at the other end of the cable

Tone generator and probe

What memory modules are used in workstations and printers due to its larger size and shape

DIMM

What is the IP address of a router to which packets destined to a remote network should be sent by default. Without this your network traffic can never leave the local area network

Default gateway

What is used when the DHCP server is disabled and clients are configured manually to join the network properly

Static IP address

What is configured automatically by the DHCP server when a new host joins the network

Dynamic IP address

What is used in IPv4 to differentiate the two portions of an IP address into the Network ID and the Host ID

Subnet Mask

What can you use to extend the smartphone’s battery life and use it continuously throughout the day

Smartphone case with built in battery

Which button on a desktop computer begins a reboot of the computer without power being removed from the computer’s components

Reset button on the front panel of a desktop computer next to the power button

What do most wearable fitness devices use to determine how many steps you take each day

Accelerometer

If the workstation is not recognizing the hard drive, what would be the error message

No boot device available

If the hard drive was recognized but the Windows OS was not installed properly, what would be the error message

OS not found or NTLDR not found

What would be the error message for an issue with BIOS

BIOS ROM checksum error

Can power fluctuations cause flickering of the laptop display

Yes, flicker is a visible change in a lamp’s brightness due to rapid fluctuations in power supply voltage

A dedicated GPU or video card is more expensive, can be upgraded or replaced, and provides better performance than an integrated GPU. True or false

True

What kind of video card should be used for gaming, video editing, or 3D rendering

Separate video card with a dedicated GPU

What is the MacOS term for BSOD

Pinwheel of death

What is the Linux term for BSOD

Kernel panic

Port # 3389 is used by what protocol

RDP

Port # 22 is used by what protocol

SSH

Port 23 is used by what protocol

Telnet

Port 110 is used by what protocol

POP3

What component of a laser printer is used to combine the 4 colors before printing them to the paper in one pass

Transfer belt

What component in a laser printer applies an electric charge to the paper to attract toner from the photoconductor during the imaging process

Transfer roller

What is the component in a laser printer that turns above a stack of paper to feed a sheet into the feed roller

Pickup roller

What is an expansion card that enables a PC to connect to a LAN

Network Interface Card aka network adapter

What expansion card enables a PC to connect to a LAN

Network Interface Card

What is another name for a Network Interface Card

Network Adapter

This is a type of network bridge that provides bi-directional data communication via radio frequency channels on a hybrid fiber coaxial (HFC), radio frequency over glass (RFoG), and coaxial cable infrastructure

Cable modem

This technology is used to transmit multimedia traffic at high-bit rates over twisted pair copper wire (telephone lines)

DSL (Digital Subscriber Line)

A device that connects fiber optics cables to other types of wiring such as Ethernet and phone lines by converting the signal from optical to electrical and vice versa

Optical Network Terminal or ONT

What is commonly used with Fiber To The House installations

ONT

This provides block-level striping with distributed parity to provide redundancy using a minimum of 3 disks

RAID 5

What is important to have in a virtualization workstation

A fast processor with multiple cores. It is also good to have lots of memory with a fast HDD

If a power supply is chosen that is too large, it will generate excessive heat that can overheat the computer and its components. True or false

True

Can a flag pole placed between two antennas cause signal attenuation and intermittent connectivity issues

Yes. The flag pole in the path of the two antennas may be obstructing the line of sight and attenuating the signal

What is a common peripheral used with a point of sale workstation

Signature pad

For optimal network performance, what is the most important consideration for a WAP to ensure that the building’s construction doesn’t cause interference with the wireless signals

WAP placement

In which protocol is mail downloaded to the device and the mail is removed from the server’s mailbox by default

POP3 or port 110

Which protocol does not remove mail from the server when the client but instead maintains a copy on the server indefinitely until the user forces it to be deleted

IMAP or port 143

What protocol is used to send mail between hosts on the internet

SMTP or port 25

What is a secure protocol used to provide web content using SSL/TLS encryption

HTTPS or port 443

What type of power supply allows the installer to attach or remove cables from the power supply as needed to reduce cable clutter inside the computer’s case

Modular Power Supply

What power supply is commonly used in gaming computers since they have high powered graphics card

750 watt rated power supply

What is the 5th step of the troubleshooting methodology

Verify full system functionality and implement preventative measures

What is the 4th step in the troubleshooting methodology

Establish a plan of action to resolve the problem and implement the solution

What is used to test a port

Loopback plug

What is used when a CDMA smartphone attempts to connect to the cellular network while traveling

PRL and PRI Preferred Roaming List Preferred Roaming Index

This is embedded operating system in the firmware of a smartphone or cellular device

Baseband

What is also known as a virtual machine monitor and is a process that creates and runs Virtual Machines

Hypervisor

What are examples of Type 2 Hypervisors

VM Ware and VirtualBox

What is a VM that has been installed without authorization

Rogue VM

The uncontrolled deployment of more and more VMs is referred to as what

VM sprawl

What printers use a filament to create the objects being printed

3-D printers

What uses the most power of any component in a computer

Dedicated graphics cards

What should you verify before installing a new dedicated GPU using an expansion card

The power supply’s wattage rating

What connectors are used with storage devices and optical drives

SATA connectors

What can cause an LCD/LED screen to become squished, distorted, or have black vertical or horizontal lines filling up the excess space

Incorrect display resolution

What networking hardware is used to create network infrastructure within the cloud

Software-defined networking

If your hard drive produces a S.M.A.R.T. failure, what should you do first

Immediately back up the drive

Once you back up the drive after a S.M.A.R.T. failure, what can you do next to repair the drive

Use chkdsk

What cloud model allows for the seamless integration of both onsite and cloud services to the end-user simultaneously

Hybrid cloud

What cloud model contains services offered by third-party providers over the public internet and is available to anyone who wants to use or purchase them

Public cloud

What can be used to capture a purchaser’s credit card details

Bluetooth card reader

What is the speed of infrared wireless networking standard

4 Mbps with direct line of sight for communications. Used to connect mice and keyboard to a laptop in the 1990s

What is a flash drive typically used for digital cameras and smartphones

Memory card

What type of network cable should be used to prevent crosstalk

Shielded Twisted Pair STP

What is used to terminate cables used for phone lines

RJ-11

This provides a full virtualized desktop environment from within a cloud-based service

DaaS

What is the localhost IP address for testing your Network Interface Card

127.0.0.1

What are the ports for NetBIOS protocol to share files and printers on Windows network

Ports 137 and 139

What ports does FTP protocol use to transfer files across the internet

Ports 20 and 21

What can cause a computer to keep rebooting itself

A faulty power supply or a computer that is overheating

What can VGA cable with a few broken pins cause on the display screen

Incorrect colors on the display screen

What cable supports both charging and data transfer with a non-directional connector inserted into a port on the device

USB-C

What can cause a projector to overheat and turn off the bulb to reduce the machine’s heat load

A faulty or clogged cooling fan

This is a sophisticated type of port replicator designed to provide additional ports (such as network or USB), expansion slots, drives to a laptop when used at a desk

Docking station

A simple device that extends the range of ports (USB, DVI, HDMI, Thunderbolt, network) available for a laptop when used at a desk

Port replicator

What component would require you to de-solder the old part from the laptop to install and solder in a new one

DC jack is always soldered to the motherboard in a laptop

Where are cellular cards usually installed in a laptop

Mini PCIe slot

Which cellular technology was not popular outside the U.S.

CDMA

What cellular technology uses a SIM card to identify the subscriber and network provider

GSM (Global System for Mobile) is popular outside the U.S.

What is 4G cellular technology made up of

LTE and LTE-A

What is the speed of LTE

Theoretical speed of 150 Mbps and real world speed of 20 Mbps

What is speed of LTE-A

Theoretical speed of 300 Mbps and real world speed of 40 Mbps

What is the speed of 3G using GSM and HSPA+

Theoretical download speed of 168 Mbps and theoretical upload speed of 34 Mbps

What technology is 3G made up of

HSPA+ and EV-DO

What should be implemented on the switch to prevent dropped calls VoIP telephone service

Quality of service should be implemented on the switch

What can fix incorrect chroma display between the monitor and printer

Printer and monitor are using different color profiles. Calibrate both the printer and monitor to the same standard so the colors will match

How do you set up a thin client using a Virtual Desktop Infrastructure

Connect thin client to the network, update the latest security updates, and install the necessary applications

What type of expansion bus technology uses lanes with point-to-point communication paths between two components on the motherboard

PCIe

How many watts do the top graphics cards consume

110 watts to 270 watts

How many watts do most business computer power supplies have

300-watt power supply

How many watts do low-end gaming computer power supplies have

450-500 watts power supply

How many watts do high-end gaming workstation power supplies have

750-850 watts power supply

Where do you check to determine if a system with an Intel i7 processor can run a virtual machine

Check the settings in BIOS to determine if virtualization was enabled

What is the Intel virtualization technology called

What is the AMD virtualization technology called

AMD-V

What older type of printer works by pressing a ribbon of ink onto a sheet of paper using a series of dots and multiple copies of a document can be created at once

Impact or dot-matrix printer

This printer is commonly used for receipts at grocery stores and restaurants

Thermal printer

What is called when the top of the projected image is wider or narrower than the bottom of the image

Keystone effect

How do you fix the keystone effect in a projector image

Adjust the keystone settings in the projector

VOIP devices that rely on PoE should use what cables for connection

CAT 5e or CAT 6 at 300 ft or 100 meters

When using a Type 1 Hypervisor virtualized environment, what hardware is necessary to connect the VMs to the corporate network

Virtual NIC

What optical discs can only support storing up to 700 MB on a single piece of media

CD-RW

How much can single layer DVD store

4.7 GB

How much can a dual layer DVD store

8.5 GB

How much can a single layer Blu-ray Disc store

25 GB

How much can a dual layer Blu-ray Disc store

50 GB

What software suites are designed to manage the use of smartphones and tablets within an enterprise

MDM or Mobile Device Management

What uses a SIM card to identify the subscriber and network provider

GSM or Global System for Mobile

What is an interface for connecting flash memory devices such as SSDs to a PCI Express bus

NVMe

If you’re connecting a network over a long distance (over a few hundred meters) what cable should you use

Fiber optic cable

What distance can shielded and plenum copper cables cover

Maximum of 100 meters

What distance can coaxial cables cover

Maximum distance between 200-500 meters

A laptop that can stay on while connected to the wall outlet means the DC jack, power adapter, and wall outlet is good, and thi is bad:

Battery is bad

Before making changes to a client’s computer, what should you ensure

Verify that a recent backup of all the client’s important files have been created

What is a measurement of performance used to compare a hard disk drive and a solid state device

IOPS Input/output Operations per Second

What is best practice when replacing a disk in a RAID

Replace it with the same brand and model of the hard drive

What do most professionals purchase when initially building out their RAID array

Spare hard drives

What is installed in a communication closet to connect network wall jacks to network switch using pre-wired RJ-45 ports

Patch panel

What are used to logically divide networks into subnets

Routers

What is the best course of action for replacing a laptop cracked screen when the instructions are not available

Carefully remove the laptop’s cracked screen while documenting and labeling all of the screw locations and cable/connectors

Which cloud computing concept allows users to store files on a cloud-based server when necessary and copy that data from the cloud, and put it back on the device when space once again becomes available on the device

On demand

This concept allows a virtual environment to allocate memory and processing capacity for a VMs use

Resource pooling

This is the use of a mobile device’s cellular data plan to provide internet access to a laptop or PC

Tethering

What is tunneling

Encapsulation protocol that wraps up data from one protocol for transfer over a different type of network

What is the temporary storage used for running applications

RAM

This appliance enforces a variety of security related measures, combining the work of a firewall, malware scanner, intrusion detection system, and intrusion prevention system

Unified Threat Management

How does a DHCP reservation work

The DHCP server will assign an IP from its DHCP scope to the client and reserve it based on its MAC address

This record is an alias name which associates one domain name as an alias of another in DNS

CNAME

This record is used for outgoing (SMTP) and incoming (POP3/IMAP) traffic in DNS

This record associates your domain name with an IPV4 address in DNS

This record associates your domain name with an IPV6 address in DNS

AAAA

What prevents malicious and unauthorized apps from loading into the OS during the startup process

Secure Boot is enabled by default in Windows 10

When there is excessive heat and swelling from a smartphone, what should be done

Turn off the phone, do not plug it into the wall outlet, and replace the battery

If there is an associated fee for every file or amount of data, what kind of plan is this

Metered plan

What UDP ports does SNMP use

Ports 161 and 162

What is a complete development and deployment environment in the cloud, with resources that enable you to deliver everything from simple cloud-based apps to sophisticated, cloud-enabled enterprise applications

PaaS

This is a server that accepts requests through HTTP or HTTPS for a webpage and delivers the webpage and other requested resources to the user

Web server

This acts as intermediary between computers and printers by accepting print jobs and then sending them over to the correct printer when it is ready to accept new jobs

Print server

What can happen when apps are updated automatically

They can sometimes become faulty or corrupted and slow down performance on the device

How do you configure a computer to utilize the PXE (Preboot Execution Environment) boot option

BIOS boot option

What is important when taking apart a laptop

Keep track of each of the screws and the location they were removed from

What will not sync your data between Windows, macOS, Android, and iOS devices

Shadow Copy because it only works on Windows devices

What is a server or network appliance used to prevent users from being overwhelmed with spam or junk email

Spam gateway

This is a server that collects diagnostic and monitoring data from the hosts and network devices across a given network

Syslog server

This is a server that accepts requests through HTTP or HTTPS for a webpage and delivers the webpage and other resources to the user

Web server

What is a hardware-based cryptographic processing component that is part of the motherboard

TPM or Trusted Platform Module

What type of network cable can provide 10 Gbps speed

CAT 6a Supports 10 Gbps to 165 ft or 55 meters

What speed does CAT 5e and 802.11ac support

1 Gbps

What speed does 802.11n support

600 Mbps

Where do you look to find the cause of your Windows 10 system crash and how to fix it

BSOD

The MAC address is composed of how many hexadecimal digits

This attack is an attempt to make an online service unavailable by overwhelming it with traffic from multiple sources

Distributed Denial of Service DDoS

This is built in diagnostic program that checks the hardware to ensure the components required to boot the PC are present and functioning properly

POST Power On Self Test

This is an authentication technology that allows users to authenticate once and receive authorizations for multiple services

Single Sign On

This is an authorization scheme that relies on two of five factors: something you know, something you have, something you are, something you do, and somewhere you are

MFA Multifactor Authentication

If a laptop loses power when moved, what is most likely the issue

Loose battery connections

What is the most commonly used key to enter the BIOS/UEFI boot order menu

F12

What happens if you press F11 during the boot up process on a Windows workstation

The system will boot into recovery mode

What happens if you press F8 during the boot up process on a Windows workstation

It invokes the Advanced Boot Options menu to allow the selection of different start modes for troubleshooting

When you are asked to work on a machine containing proprietary information and you need to remove the workstation for repairs, what should you always do

Verify the company’s corporate policies regarding the removal of a workstation for repair

What does a bootable device not found error mean

The hard drive is not found or is off

What provides a cryptographic authentication mechanism to positively identify an organization as the authorized sender of email for a particular domain name

DKIM DomainKeys Identified Mail

What ensures the DKIM and SPF or Sender Policy Framework are being utilized effectively

DMARC Domain-Based Message Authentication, Reporting, and Conformance

What is a communication protocol for electronic mail transmission that does not utilize cryptographic authentication mechanisms by default

SMTP or Port 25

This technology is used to transmit multimedia traffic at high-bit rates over twisted-pair copper wire (over ordinary telephone lines)

DSL. A telecommunications company can connect a user’s home to the local switching center using normal telephone lines and the local switching center to the central office over fiber optic cables

What are the sequence of events for the laser printer’s imaging process

Processing Charging Exposing Developing Transferring Fusing Cleaning

What can you do to speed up the boot time of the server if you hear clicking noises from the hard drive during booting

Defragment the hard drive since the clicking means the system has to access many parts of the drive to load the files during booting

What can you do to get a laptop connected to the wired network if the RJ-45 port is broken

Purchase a USB to RJ-45 adapter

What is considered the most popular and widely used RAID configuration

RAID 5

What causes fading in a laser printer

When the ink or toner is running low

This is used to describe scalable provisioning or the capability to provide scalable cloud computing services

Rapid elasticity

What can cause a dim image from a projector

The contrast is low. Increase the contrast to brighten the screen’s image

What is the primary consideration for a storage controller card

If it supports hot-swappable drives to prevent downtime

What can you do to extend the lifespan of an SSD

Disable any scheduled defragmentation tasks

When installing DIMM memory modules in a new gaming workstation, what should you do first

Consult the motherboard’s manual and documentation to determine the best method of installing the memory into the system

How many bits does a single channel memory use

64 bit bus between CPU and RAM

How many bits does a dual channel memory use

128 bits bus between the CPU and RAM

What expansion cards provide the ability to add wireless networking or cellular data cards to a laptop

MiniPCIe

This is a slower but more reliable data delivery protocol that ensures packets arrive error-free and without loss

TCP

What can determine a wireless network’s signal strength, the frequencies in use, and any possible radio interference

Wi-Fi Analyzer

How can you fix dead zones in a network’s wireless coverage

Add additional access points

What is the touch sensitive glass panel covering the LCD in a touchscreen assembly

Digitizer

This is an electrical component that stores electrical energy and is often used to regulate voltages

Capacitor can hold a charge after the power is removed

What would cause you to replace a motherboard based on this symptom observed

Distended capacitors

What indicates a distended capacitor

Foul odor

What indicates a burning smell

A bad power supply

What are the next two steps after determining a laptop motherboard needs to be replaced

Read the owner’s manual for procedures and steps to avoid breaking warranty and documentation of all screws and their locations

Do you disconnect the laptop keyboard or battery first

Disconnect the battery first

What is the best environment to test operating system patches before deployment

Use a virtualized environment to test the patch across each operating system before deployment

What can measure voltage, amperage, and resistance of a circuit

Multimeter

What can you do stop a noisy and whining sound from the fan

Apply a small amount of oil to the fan’s bearings

What can cause a laptop to shut down intermittently at random times when more intensive processor tasks are performed

Inadequate airflow and overheating

What does a virtual reality headset require in a computer

Fast processor, lots of memory, and dedicated graphics card

What is commonly used to connect wireless devices like mice, trackpads, headphones and other devices

Bluetooth

What type of system memory is commonly used in production servers and not in standard desktops or laptops

ECC or Error Correcting Code

If no error is shown in the taskbar’s printer icon, what should the user do

The user should open the print queue to determine if the print job has become stuck

What printer concept produces higher quality outputs

Postcript PS is slower but higher quality

What is a page description language used to tell printers how to properly layout and print the contents of a document on a page

Printer Control Language PCL is faster to print than PS

What does a user need to configure the email client on an Android device with an Office 365 account

Email and password

What printer configuration settings control the size of the paper used for the print job

Tray

What should be installed as an intermediary between your clients and the web servers they want to connect to make an HTTP request from the client, check it, and then forward it to its destination

Proxy server

What server can provide the location of the DNS server

DHCP server

What printer setting allows the gathering and arranging of individual sheets or other printed components into a pre-determined sequence

Collate

What protocol operates over Port 137 and 139

NetBIOS/NetBT

What port does IMAP use

Port 143

What network device uses Access Control Lists ACLs to prevent unauthorized access into company systems

Firewall

This is the use of a program to screen and/or exclude access to web pages or emails deemed objectionable

Content filtering

This distributes a set of tasks over a set of resources to make their overall processing more efficient

Load balancer

These are pre-paid, a la carte, pay per use, or committed offerings

Metered services charge users based on the actual usage of service resources on an hourly or monthly basis

This occurs when a router takes requests from the Internet for a particular application, such as HTTP/port 80 and then sends them to a designated host on the local area network

Port forwarding

What protocol is port 80

HTTP

Which form factor of storages devices are not used in laptops

3.5” are only used in desktops and some networked file servers

What form factors for storage devices do laptops use

2.5” and 1.8” magnetic drives and M.2 form factor SSD

What does a single beep during the boot up process indicate

Successful completion of POST

Which laptop display uses a fluorescent backlight to illuminate the image

LCD

How many pins does Apple’s lighting port have

8 pins

The lighting cable is used by every iPhone from what series

iPhone 5- iPhone 13

What is the default standard cable used in USB 3.1

USB-C with a 24 pin connector

For wireless B and G networks, what channels should you always use to ensure you are using non-overlapping frequencies

Channels 1, 6, and 11

What color are USB 3.0 ports

Red

If the printer pages have a dust like coating, what component us failing

Fuser

This feature turns your smartphone into a Wi-Fi access point and then allows other devices to connect to your smartphone and gain access to the internet

Mobile hotspot

What port does encrypted POP3 use

Port 995

What port does encrypted IMAP use

Port 993

What port does encrypted SMTP use

Port 465

What is the third step in the troubleshooting methodology

Test the theory to determine the cause

What device connects to a USB port to allow additional USB devices to be connected to the PC, essentially increasing the number of USB ports available

USB hub

This connector can be used as a DisplayPort or USB 3.0 connector

Thunderbolt

Thunderbolt 3 uses what connectors

USB-C connectors

This fills any gaps between the CPU and heat sink to transfer heat more efficiently to the heat sink from the CPU

Thermal paste

What type of connector is used to terminate a coaxial cable

F type

What type of cable is recommended for Cable TV, satellite, TV antennas, or broadband internet

RG-6

What cabling system is better for CCTV systems and other analog video signals

RG-59

What is used to terminate an RS-232 serial cable

DB-9 connector

What is used to terminate cables used for phone lines

RJ-11

This is used to terminate a copper twisted-pair Ethernet cable

RJ-45

Replacing an HDD with an SSD can dramatically increase the loading speeds as the OS and other programs are read from the storage device during boot up and when loading programs. True or false

True

An integrated GPU cannot be upgraded in a laptop. True or false

True because the integrated GPU is built into the CPU

Can a dedicated GPU be added to most modern laptops. Yes or no

What is an input device used on most laptops to replace a mouse

Touchpad

This is a device that electronically captures a person’s handwritten signature on an LCD touchpad using a pen-type stylus

Signature pad

Where do you go to select the boot order

Boot to BIOS to select the boot order

What is a network boot execution process allowing you to retrieve an image from a server

PXE or Preboot Execution Environment

What type of IP address is the range of 169.254.0.0- 169.254.255.255

APIPA address

What does it mean when a workstation is assigned an APIPA address

The DHCP server is unreachable

Boot into recovery mode needs to access the internal hard drive’s OS. True or false

True

This resource record indicates which Domain Name Server is the best source of information for the specified domain

SOA Start of Authority

What type of network connection would allow VMs to have internet access

External

What type of network would allow VMs to communicate between the host and other VMs

Internal

What type of network uses a switch that allow VMs to communicate with other VMs but not the host

Private

What type of network allows VM to communicate with itself only

Localhost

What device would allow you to control and provide input commands to multiple servers within the same server rack using a single set of input commands

KVM switch

What software secures and enables IT administrators to have control over enterprise applications on end users’ corporate and personal smartphone and tablets

MAM focus on the application

This is designed to manage the use of smartphones and tablets within an enterprise

MDM focus on the device

What communication standard uses a SIM card to identify the subscriber and network provider

GSM Global System for Mobile

What communication standard uses a method of multiplexing a communications channel using a code to key the modulation of a particular signal

CDMA Code Division Multiple Access

What connection allows an individual user to connect to a private network from a remote location using a laptop or desktop computer connected to the internet

VPN Virtual Private Network

This is a network service provided by a router or proxy server to map private local addresses to one or more publicly accessible IP addresses

NAT Network Address Translation

This is a logically separate network created using switching technology

VLAN has hosts on two VLANs use a router to communicate

This is commonly used in production servers and is not standard in desktops or laptops

ECC Error Correcting Code

What do AirPods need enabled to work

Bluetooth

This is an IPV6 address that is valid only for communications within the network segment or the broadcast domain that the host is connected to

Link local address

What USB can support data rates up to 12Mbps

USB 1.1

This is an electronic device that receives a signal and retransmits it to extend signal transmissions over longer distances

Repeater

This is a network device that receives incoming data into a buffer, then the destination MAC address is compared with an address table so that the data is only sent out to the port with the corresponding MAC address

Switch

What are the 4 main things you need for a gaming PC

An SSD High end video GPU High definition sound card High end cooling

What radio frequency does Zigbee use

2.4 GHz

What are large smartphones, smaller than a tablet but larger than a smartphone

Phablets

What technology can be used in a licensed long range fixed wireless system

Cellular fixed wireless system that requires a license from the FCC to operate to ensure they are not interfering with other users and services in the same frequency band

What RAID offers the fastest speed, best reliability, and highest redundancy but is more costly as the overall disk storage will be greatly reduced

RAID 10

What is the most likely cause of a continued paper jam error after pulling out the jammed paper out of the printer

Small bits of paper being left in the path or in front of a blockage sensor

Can the macOS be installed as a guest inside of a virtual machine on a Windows 10 laptop running Virtual Box

No because macOS can only be installed Virtual Box virtual machine running on a macOS system

Can a Windows or Linux virtual machine be installed on any host operating machine

Yes

What should you if your MacBook fails to print on a network printer while other Windows users are having no issues printing

Install the print drivers for OS X on the print server

What causes a laptop to shutdown whenever it is moved

Loose battery connection

If you want users to access a server’s data, what do you need to do to provide this access

Configure file sharing

What is used to transfer ink to a piece of paper on an impact printer

Ribbon

What printer uses toner

Laser printer

What printer uses filament

3-D printer

Which RAID provides redundancy and double fault tolerance

RAID 10

This RAID uses disk striping with parity but only provides single fault tolerance

RAID 5

What is the second step in the troubleshooting methodology

Establish a theory of probable cause

What is the best way to migrate corporate email account data from an iPhone to a new Android device

Log into the corporate email account on the new Android phone and restore data to the new iPhone

What is the most likely problem if an Android phone’s display is dim and hard to read in a room with normal lights

Faulty ambient light sensor

Which technology allows a company the ability to manage employees’ mobile devices, provide security updates, and perform remote administration

MDM Mobile Device Management

What is the port number for HTTPS

443

What type of services allow you to get more storage and more resources added to the cloud as fast as possible

Rapid elasticity

What should be done if a few users cannot get speeds higher than 108 Mbps with an 802.11n network card

Update the WLAN network card

What speed can wireless N networks support

600 Mbps with the network cards’ proper software drivers

Which wireless network utilizes the 5 GHz frequency band and reaches speeds up to 54 Mbps

802.11a

Which wireless network utilizes the 2.4 GHz frequency and reaches speeds up to 11 Mbps

802.11b

Which wireless network utilizes the 2.4 GHz frequency and reaches speeds up to 54 Mbps

802.11g

Which wireless network utilizes the 2.4 GHz frequency band at 108 Mbps or the 5 GHz at 600 Mbps

802.11n

Which wireless network utilizes MIMO

802.11n

Which wireless network utilizes the 5 GHz frequency band and reaches speeds up to 3.5 GBPs

802.11ac

Which wireless network utilize multi-MIMO technology to use multiple antennas to transmit and receive data at higher speeds

802.11ac

Which wireless network utilizes the 2.4 GHz and 5 GHz frequency bands and reaches speeds up to 9.6 Gbps

802.11ax

What is 802.11ac also called

Wi-Fi 5

What is 802.11ax also called

Wi-Fi 6

802.11ac also has a version called Wi-Fi6e that supports what frequency band

6 GHz

What wireless network uses channel bonding to create a single channel of up to 160 MHz to provide additional bandwidth

802.11ac

What wireless network uses orthogonal frequency-division multiple access OFDMA to conduct multiplexing of the frequencies transmitted and received to each client to provide additional bandwidth

802.11ac

What is the most common USB connector used to connect to a printer

USB Type B

What USB was developed for connecting compact and mobile devices such as smartphones, MP3 players, GPS devices, and digital cameras

Micro USB

What USB was introduced with USB 2.0 and used with digital cameras and early tablets

Mini USB

This record lets domain administrator enter text into the Domain Name Systems

TXT record

What setting allows the Windows output be stretched across two or more monitors as if they were a single monitor

Extended mode

This is a network condition that occurs when a time delay in the sending of data packets over a network connection occurs

Jitter

If the POST test cannot be run and the system will not boot up could indicate what

The CPU 8-pin power cable is not connected to

What are private IP address ranges

10.x.x.x 172.16-31.x.x 192.168.x.x

What is the APIPA address ranges

169.254.1.0- 169.254.254.255

This device will allow the user see their notifications, chat activity, and even make phone calls

Smartwatch

What causes faded or faint colors in your laser printer printed papers

Low toner

Graphics cards use these expansion slots for connectivity

PCIe x 16

This is an information provision and distribution model in which data files including text, images, sounds and videos are made available to customers over a network, typically the internet

Data as a Service DaaS

What does installing a multicore CPU achieve

Increased performance and overall processing

When attempting to access shared folders on a server, what do you need for increased performance and overall processing

High performance Network Interface Card

Which resources is used by virtual machines to communicate with other virtual machines on the same network but prevents them from communicating with resources on the internet

Virtual Internal Network

What are the 2 main things to include for a dedicated virtualization workstation

Multiple CPU cores and maximum RAM

What would happen if a smartphone is left in a car on a sunny day

It would overheat and shut down

What Hypervisor runs on top of an existing operating system

Type 2 Hypervisor

Type 1 Hypervisor is also known as as

Bare metal

If the laptop battery won’t charge or will only charge if the connection is made at a certain angle, this is an indication of what

The DC power jack has failed

Which cloud services provides access to Docs, Sheets, Drive, and other productivity tools using a subscription based pricing model

Google Workspace

What wireless networking technology is commonly used to connect a mouse to a laptop to create a PAN

Bluetooth

What is the frequency range for microwave transmissions

4 GHz to 10 GHz

How do you deploy the image of a brand new server to demonstrate the vulnerabilities exposed while maintaining the security of the corporate network

Deploy the system within a virtual machine, ensure it is in an isolated sandboxed environment, then scan it for vulnerabilities

How many pins does a VGA connector have

What component in a computer makes a loud clicking noise when it’s failing

Hard disk drive

What could cause a motherboard to not recognize a new hard disk drive even though all the cables are connected properly

The motherboard’s firmware is not supporting a newer hard drive model so it needs to be updated

What do you do if a RAID 5 configuration alerts you that the RAID is degraded and that Local Disk 0, Physical Disc 3 has failed

Schedule an authorized downtime, replace the failed drive, rebuild the array, and confirm that the RAID is no longer reporting itself as degraded. During rebuilding the array, the system may perform extremely slowly

What can cause a workstation to overheat and shutdown or reboot itself to protect the processor

If the case fans are clogged with dust or become unplugged

How can a company ensure that its mobile devices are configured to protect any data stored on them if they are lost or stolen

Full storage encryption. The device can be remotely wiped if lost or stolen

What laptop display supports a high refresh rate of 120 Hz or 144 Hz

TN or Twisted Nematic display is black with no electric current and white with electric current

What LCD panel provides a high quality color reproduction

IPS in-plane switching

What LCD panel uses technology designed to have liquid crystals lay perpendicular to the glass substrate when power is removed and in vertical position when the voltage is applied. This allows light to move through liquid pixels when voltage is applied and the image is then produced

Vertical Alignment LCD panel

What is a flat panel display that uses small cells containing plasma with ionized gas that responds to electric fields

Plasma displays create excessive heat and are not energy efficient

What records are used to provide the mail server that accepts email messages for a particular domain

MX Mail Exchange

These records are used to list the authoritative DNS server for a particular domain

Nameserver NS

What wireless networks utilize the 2.4 GHz frequency for their communications

802.11b and 802.11g

What wireless networks utilize either the 2.4 GHz, 5.0 GHz, or both

802.11n and 802.11ax

What frequency band does 802.11ac or Wi-Fi 5 utilize

5.0 GHz

How can you establish a connection between your smartphone and the car stereo

By pairing the device

This is a piece of code that is loaded during the boot sequence of an operating system

Device driver

How do you install Windows and Linux to practice configuring these operating systems

Install virtualization software like VirtualBox, VM Ware, or Hyper-C and install each OS as a virtual machine

Does Chromebooks support virtual machines

What rpm hard disk drive should be used for a high performance gaming computer

15,000 rpm hard disk drive or SSD

What can cause a projector to turn itself off

Overheating from a dirty cooling fan or failed cooling fan

How do you fix a laptop with a screen image that is being displayed upside down

Change the orientation of the screen by holding down the Ctrl and Alt key, then press up/down/left/right arrow key

This refers to using VM as a means of provisioning corporate desktops

Virtual Desktop Infrastructure

What IP address should be used for servers to ensure they are easy to find, access, and manage on the network

Static IP address

An APIPA address is also known as

Link local address

A perimeter network is formerly known as

Demilitarized zone or DMZ

Where should a Minecraft server be placed when configuring a firewall

Perimeter network is a private network connected to the internet and protected against intrusion

For an extremely high powered processing environment that generates lots of heat, what is the most efficient way to dissipate the system’s heat

Liquid cooling system

A continuous reboot could be a problem with what

RAM

How can you print a spreadsheet horizontally on a piece of paper instead of vertically to fit more columns on a single piece of paper

You can change the orientation setting from the default of portrait to landscape

What can cause slow performance after a RAID 5 hard drive is replaced

The RAID 5 rebuilding itself can cause slow performance

What can cause an impact printer’s output to crease the paper as it is printed and the paper jamming

Incorrect paper size and excess paper in the feed path

What type of connector is used to connect a serial port or external modem

DB-9 is a serial connector

What type of connector terminates an RS-232 serial cable

DB-9 serial connector

This provides a full virtualized desktop environment from within a cloud-based service

Desktop as a Service DaaS

DaaS is also known as

Virtualized Desktop Infrastructure DVI

Why does 5.0 GHz frequency supports higher data rates than 2.4 GHz

Due to lower levels of congestion and interference. The 5.0 GHz frequency has more individual channels

Does the 5.0 GHz or 2.4 GHz frequency cover a longer range using same power output levels

2.4 GHz covers a longer range due to its longer longer wavelength

Does the 2.4 GHz or 5.0 GHz frequency propagates better through solid surfaces

2.4 GHz propagates better through solid surfaces due to its longer wavelength

What is the interface standard for connecting high speed components

PCIe slots take GPUs, RAID cards, network adapters, Wi-Fi cards, SSD add-on cards

Which Wi-Fi channel in the 2.4 GHz frequency band is only supported in Japan

Channel 14

How many MHz does Wi-Fi communication require to operate effectively

20 MHz

How many bits of memory can a quad channel memory controller transfer per transaction

256-bits of memory per transaction (4x64-bits)

What cloud computing resources are most important when determining a cloud file-storage synchronization application’s performance

I/O bandwidth is the measurement of the amount of input and output operations that can be performed within a given time

What emulates hardware without relying on the CPU being able to run code directly

Emulator

What is not a common voltage produced by the power supply of a computer

6 VDC

The OS not found at boot time indicates what

The MBR or GPT is faulty or corrupted

How do you fix the MBR when it is faulty or corrupted

Boot into the Windows recovery mode and use the command bootrec/fixmbr

This is a simple device to extend the range of ports (USB, DVI, HDMI, Thunderbolt, network) available for a laptop computer when it is used at a desk

Port replicator

This is a full, thick-client user environment run as a virtual machine on a server and accessed remotely

Remote hosted virtual desktop allows a company to utilize the cloud for its desktop infrastructure, reduce its maintenance cost, and shift capital expenses

What port does the Network Time Protocol (NTP) use

Port 123

What port does the Trivial File Transfer Protocol (TFTP) use

Port 69

What port does the DHCP use

Port 67

If the power supply fan is faulty, what should you do

Replace the entire power supply. Never attempt to fix broken power supply or broken power supply cooling fan due to the power supply’s high voltage electrical components

What happens if the hard drive fails

The workstation will experience data loss or will fail to boot up

Is it possible to use both DDR3 and DDR4 in the same workstation

No because they are two different form factors that use different notches

If a static IP address is issued to a virtual machine and then both the virtual machine and printer on the network have intermittent connectivity issues, what could cause these issues

An IP conflict often causes this type of intermittent connectivity. An IP conflict occurs when a static IP is also part of a DHCP scope

What does a GPS need done to determine the true North

Calibration

Which cellular technology utilizes new frequency bands to reach proposed speeds up to 70 Gbps

What cellular technology is made up of low band, mid band, and high band mmWare technology

What cellular technology is made up of LTE and LTE-A

How can you access files from a hard drive after removing it from a laptop

Remove the hard drive from the laptop, place it in an external USB enclosure, and connect it as a secondary drive to the CFOs desktop computer to copy the spreadsheets

Which wireless networks use MIMO

802.11n

Which wireless network uses MU-MIMO

802.11ac

WPA2 is a wireless encryption standard and can be used with which wireless networks

802.11 G N AC AX

What is IEEE 802.3af

POE or Power over Ethernet

What technology is commonly used to inventory the organization’s equipment by attaching a tag to the device containing a chip programmed with the assets data, allowing one-way communication to occur from tag to the reader

RFID

RFID is a one-way communication mechanism while NFC is two way communication mechanism. True or false

True

What frequency does Zigbee use

2.4 GHz

What frequency does Z-wave use

800 MHz and 900 MHz frequency ranges

What causes several black dots on the laptop’s display

Dead pixels are lost forever and the entire display needs to be replaced

What would you do before removing and replacing a laptop’s lithium-ion battery pack

Shut down the laptop and unplug the laptop from the power adapter

If your laptop display is shown in low resolution but the computer isn’t is safe mode, what could be the issue.

Corrupted or missing display driver

This is a memory controller with two primary pathways through the bus to the CPU to transfer 128-bits of data in each transaction

Dual channel

What port is SMB

Port 445

What is the component in a laser printer that applies an electric charge to the paper to attract toner from the photoconductor during the imaging process

Transfer roller

This is the component in a laser printer that fixes toner to media

Fuser assembly

This is a parallel expansion card standard that was originally designed for attaching a video card to a computer system to assist in the acceleration of 3-D computer graphics

Accelerated Graphics Port AGP

This is a close range network that is usually based on Bluetooth or NFC for communications between personal devices such as smartphones, laptops, printers, and other peripheral devices

PAN Personal Area Network

This is a dedicated, independent high-speeed network that interconnects and delivers shared pools of storage devices to multiple servers

SAN Storage Area Network

How can you share a printer that is connected via USB to a workstation but it is not connected directly to the network via a network cable. There is a WAP nearby

Purchase a portable wireless print server and connect the printer to it using the USB. The wireless print server can receive the print jobs directly from all of the network users

What do you need to install first to install the full sized PCIe network interface card into a low profile 1U or 2U server rackmount chassis

Riser card

What happens when the printer and monitor are using different color profiles

Incorrect chroma display

What causes double or echo images on a printed document

Defective or broken drum unit

How do you fix incorrect chroma display

Calibrate both the printer and monitor to the same standard so that the colors will match

What printer configuration settings controls the overall output characteristics of the print job such as the ink/toner on the paper and the speed of the print process

Quality setting

How can you fix a touchscreen with a cursor that appears to jump to the wrong location and select the wrong icons

Recalibrate the touchscreen within the Windows Control panel

What type of cable is connected to the internal laptop keyboard

Ribbon cable are used to connect internal components in laptops to save space

What type of display panels are used on laptops

LCD panels replaced the CRT monitors

What display works without backlight because it emits visible light

OLED

How do you test a wide variety of operating systems to test software applications being developed without buying a bunch of computers to install all of these operating systems for testing

Purchase a high end computer that has lots of CPU cores and RAM, install a Hypervisor, and configure a virtual machine for each operating system that will be used to test the applications being developed

What printer concept is a page description language that produces faster outputs at the expense of quality

Printer control language PCL is faster but produces lower quality outputs

What is a page description language used in the electronic publishing and desktop publishing

Postscript PS. It is slower but produces higher quality outputs

This is a specialized internet protocol for communication between client services and printers or print servers using the HTTP protocol for data transport

Internet Printing Protocol IPP

What causes flickering in mobile phones

Failing backlight that needs to be replaced by a certified technician

In a laptop or mobile device, the LCD screen requires what to uniformly light up the screen

Backlight source

If the laser printer is printing images at an angle on the pages, what is causing this

Unevenly worn rollers feed pages at an angle and need to be replaced

What size hard drive is used in a desktop computer with a SATA connector

Higher speed hard disk drives are 3.5” and are only used in desktops and some networked file servers using a SATA connector

What size are laptop hard disk drives

2.5” and 1.8”

This is a new set of form factors for an SSD that uses a mini card interface that is faster than a SATA connection

M.2

This means using a network protocol to prioritize certain traffic type over others

Quality of Service

What are dimensions of microATX or mATX

9.6” X 9.6”

What is ATX motherboard’s form factor

12” X 9.6”

What is the Mini-ITX or mITX form factor

6.7” X 6.7”

These networks spans multiple geographic locations such as the Internet and often established with leased telecommunication circuits

Wide area network is usually a DSL, cable connection, fiber connection, or satellite connection in a home network

What happens if the desktop has inadequate airflow

It will shut down at random times

A foul odor from the motherboard indicates what

Swollen capacitor

If a desktop loses power when moved indicates what

Loose power cable

A workstation losing date/time settings indicate what

CMOS battery has failed

If you build a specialized computer for video editing, what 3 main things do you need

Dual monitors 4 TB HDD (10,000 RPM) Specialized video card

What kind of IP address is 10.3.2.1

Private class A IP address

What kind of IP address is 192.168.2.1

Private Class C IP address

What kind of IP address is 169.264.2.1

APIPA

What cable is mandated to be installed in any handling space

Plenum cable has special insulation for low smoke and low flame characteristics

What is the most widely used interface for hard disks on modern desktop and laptop computers

SATA

This is an external connection type that uses a serial SCSI connection with a D-shaped connector to support up to 800 Mbps of bandwidth

FireWire

Newer iPads have shifted from lighting cable to what cable

USB-C

What type of data should you transmit over UDP

Transmit streaming media such as videos and voip calls since UDP is faster than TCP

What does it mean if a keyboard is acting incorrectly with a few keys

The keyboard has some stuck keys caused by dirt or debris. Use compressed air under stuck keys to dislodge dirt or debris

What network performance metrics is used to represent variable delay experienced by a client when receiving packets from a sender

Jitter is big problem for real time applications like video conferencing, voice over IP, and virtual desktop infrastructure clients

This is a measure of time that it takes for data to reach its destination across a network

Latency

This is the actual measure of how much data is successfully transferred from the source to a destination

Throughput

This is the maximum rate of data transfer across a given network

Bandwidth is more of a theoretical concept that measures how much data could be transferred under ideal conditions

What type of virtualized environment is one where a switch is created that is only usable by VMs

Private network connection

What type of virtualization environment is one where VMs can communicate with the host and other VMs

Internal

What cellular technology is comprised of LTE and LTE-A

What cable type can support speeds up to 10 Gbps for up to 100 meters

Cat 6a is the only cable that can support this

When using a laser printer, what is used to transfer the image to a piece of paper

Toner

What is the first step if the smartphone’s touchscreen is unresponsive

Restart or reboot the smartphone

This is a computer system designed to perform a specific, dedicated function

Embedded system

What is Google’s IP address

8.8.8.8

This is used to host and control access to shared files and folders for the organization

File server

This is a type of file server used to host files for users outside your organization

File transfer protocol server or FTP Server

Which storage type utilizes a NAND chipset mounted directly onto the motherboard instead of a mechanical spinning drive to store data

NVMe is a storage controller mounted on the motherboard

SSDs cannot be mounted on the motherboard. True or false

True

What is the simplest and most efficient way to fix unresponsive apps

Close the app running in the background and restart the app again. This will reduce resource consumptions

What do you do when 2 network devices are assigned the same IP address in the network

Use DHCP to assign IP addresses on the network

If you can ping other workstations but can’t ping the gateway device (router), this indicates what

This means the router is not working

What does a foul smell indicate

A distended capacitor and motherboard should be replaced

When a laptop uses a Micro SATA connection, what form factor is used

1.8” form factor

What frequency does 802.11g operate in

2.4 GHz

What is the default standard, 24-pin connector, used in USB 3.1

USB-C

What are Micro USB used for

Compact and mobile devices such as smartphones, MP3 players, GPS devices, photo printers, and digital cameras

What are the 3 forms of Micro USB

Micro A Micro B Micro USB 3

What was Mini USB used for

Introduced with USB 2.0 and used with digital cameras and early tablets

If you print with a laser printer and the printed image smears across the thicker cardstock, what should you do

Turn up the Fuser temperature with thicker paper types such as envelopes, cardstock and labels

This is used to create a physical connection to the network that sends a copy of every packet received to a monitoring device for capture and analysis

Network tap

The 5.0 GHz frequency has more channels available than 2.4 GHz. True or false

True it has more channels giving it less congestion and interference than 2.4 GHz frequency. The 5.0 GHz supports higher data rates than the 2.4 GHz due to lower levels of congestion and interference

Which frequency has a longer wavelength and can cover a longer range using the same power output levels

2.4 GHz

How can you slow down the laptop’s trackpad’s cursor speed in Windows 10

Settings>Devices>Touchpad>Speed

What is a clicking noise associated with in a workstation

A hard drive that is about to fail and first action to perform is a full backup of the hard disk drive before replacing the faulty drive

Does the bare-metal approach have a host operating system

What is the operating system that runs the Hypervisor

Host operating system

What is the lowest layer (bottom layer) of a bare-metal virtualization environment

Physical hardware is beneath the Hypervisor and controls access to the guest operating systems

What type of cloud-based solution ensures the cloud provider does not commingle your data with other customer’s data and provides dedicated servers and resources for your company’s use only

SaaS in a private cloud

What is the smallest form factor and its size

Mini ITX or mITX is 6.7”X6.7”

The microATX or mATX form factor is

9.6”X9.6”

What is the ATX form factor

12”X9.6”

Is there a form factor for ITX or specific size for ITX

What is a simple square code that can be easily configured by a smartphone to access a preconfigured website address or link

QR code

What should you do if one of the disks in a RAID 5 array with four disks has failed

Replace the failed disk and rebuild the array

If you see streaks of toner across the laser printer’s printouts, what should you do

You should clean the dirty transfer roller to keep the printouts clean and streak free

What requires the use of a physical printer to print a document

Print to Network

What is XPS

XPS is XML Paper Specification and is the Microsoft alternative to PDF

What is a device that connects fiber optics cables to other types of wiring such as Ethernet and phone lines by converting the signal from optical to electrical and vice versa

Optical Network Terminal ONT

If you install a PCIex16 graphics card into a corporate workstation but the computer makes some odd noises when you press the power button, what is the most likely issue

The corporate workstation has 250-300 watts power supply that needs to be upgraded to a 500-750 watts power supply for the new graphics card

What is the port number for SMTP

Port 25

What is the port number for Secure Shell

Port 22

What ports does FTP use

Ports 20 and 21

What is used to connect CAT 5e or above networks in MDF panel or IFD distribution frame

110 punchdown block is used to terminate runs of on premises wiring in a structured cabling system. It provides more spacing between the terminals and eliminates crosstalk between the cables

What is the older punchdown block called

66 punchdown block

What type of network would be created if a wireless access point, a microwave link, and a satellite link were combined in a mesh

Wireless Mesh Network

What type of cable should be used to connect two similar devices (PC to PC, router to router, switch to switch) to create a network

Crossover cable such T568A Ethernet cable on one end and T568B Ethernet cable on the other end

What can you do for slow performing hard when reading or writing and you have eliminated the overheating issue

Run disk repair tool or run the Disk Defragmenter tool for non-SSD devices

What can you purchase and configure to ensure laptop communication remain secure regardless of where you connect from

Purchase and configure a VPN which connects the components and resources of two private networks over another public network. This uses an encryption tunnel to protect data being transferred to and from the laptop to company servers and other websites

What uses a thunderbolt cable and was designed as a competitor to HDMI

DisplayPort uses a thunderbolt cable to connect a monitor to the computer. DisplayPort supports both copper and fiber optic cabling

What was designed to replace the VGA port used by CRT monitors

Digital Video Interface DVI

When automatically receiving updates through the Windows Update service, the server receive driver updates for what

Network Interface Card, graphics cards, and other peripherals. This can accidentally install an incompatible driver that causes network connectivity issues to occur. To fix this, perform a driver rollback to the last known working version of the drivers

What is a storage drive that combines the large storage capacity of an HDD with the faster read/write speed of an SSD

Hybrid Hard Drive constantly monitor the data retrieved from storage and it automatically determines which data you open the most. It places the files that you use most often on the SSD to read/write that data faster

If a PC will not power on and you have determined that the power supply is good, what is the next troubleshooting step you should perform

Check the power connection to the motherboard, the 24-pin ATX connection

If a shared printer on a corporate network receives print jobs from multiple operating systems, how should the network printer be configured

Set up a TCP/IP print server since it will eliminate any compatibility issues associated with using different operating systems and allow the users to send jobs directly to the printer. TCP/IP is considered a high-speed and reliable method for sending print job directly to a printer

What is the most commonly used form factor for a HTPC Home Theater PC

Mini-ITX because they will require the smallest fans or passive cooling, which minimizes the noise produced by the system

What causes the printout on an impact printer to go from darker to lighter as the print head goes from left to right across the page

Defective ribbon advance mechanism

Which cable is the most widely used by modern Android smartphones and tablets

USB-C

If you want to build a system to perform the cracking of a password, hash, or encryption algorithm, what is it important you have

A high-speed dedicated GPU are designed to conduct complex mathematical functions extremely quickly

What technology uses 2.4 GHz or 5.0 GHz frequencies to determine your location indoors based on the signal strength received or the angle of arrival of that signal to the mobile device

Wi-Fi can determine the device’s location within 1-4 meters

What is the use of Bluetooth and Wi-Fi to determine the mobile device’s location

Internal Positioning System

What should you attempt first if you see the error bootable device not found

Verify that either the Molex or SATA cable is connected to the HDD

What is a function that allows you to fully copy an existing virtual machine and its current configuration

Cloning

This is a technology included in Microsoft Windows that can create backup copies or snapshots of computer files or volumes, even when they are in use

Shadow copy

This is a service provider imposed limitation on the amount of data transferred by a user’s account or device over the cellular network

Data cap or bandwidth cap

What was the PATA connector formerly called

IDE aka 40 pin ribbon cable

What causes a mobile device (smartphone or tablet) to become swollen or distended

A defective battery that needs to be replaced

What does VDI stand for

Virtual Desktop Infrastructure centralizes instances for desktops that run on a single server utilizing the resources and performance from a single server

What bandwidth does the D-shaped FireWire connector support

800 Mbps bandwidth

What if a smartphone is used as a mobile hotspot for a laptop and the speed drops from 8761 kbps to 243 kbps

The cellular company is providing fast cellular data connections but throttling the speeds provided by the hotspot

What ports does DHCP use

UDP ports 67 and 68

802.11n supports what frequency or frequencies

2.4 GHz and 5.0 GHz

802.11 ac supports what frequency

5.0 GHz

What can happen if a Cat6a patch cable is rolled over numerous times by a rolling chair and it looks flattened from the abuse

Due to the abuse of the cable being run over repeatedly by the user’s chair, the cable’s shielding could have been damaged and the cable may no longer be made up of the same consistency. This can lead to crosstalk amongst the cable pairs, or even open/shorts of in those cable pairs

If an iPad is old and the battery lasts 30-60 minutes between charges, what should be done

The battery is old and needs to be replaced

What technology could be used in an unlicensed long-range fixed wireless system

Microwave link can be established in the 4.91 GHz to 5.97 GHz unlicensed frequency range using a point to multipoint microwave antenna and transceiver system

What settings must be enabled on a mobile device to embed the GPS position into a photograph when using your device’s camera

Location Services must be enabled to embed GPS position into a photograph

If you install a PCIex8 expansion card into a PCIex16 slot, how fast will the PCIex8 card run

It will run at the x8 speed

If you try to install Hyper-V on a new laptop but keep getting an error during installation that the software cannot be installed, what should you check about the laptop’s processor

Virtualization support

If a laser printer is only printing 60-70 percent of full page color images and then fails, what could be the reason for the print failure of the photos

Lack of memory in the laser printer. A laser printer must load the entire image into memory before it can process it and print the image to the page. If it runs out of memory, it will print part of the image it has processed in memory to the page and then fail

What wiring standard is used with POTS (Plain Old Telephone System)

RJ-11

What is a discoloration of areas on an electronic display that causes a non-uniform use of the pixels that appears as an image remains after the screen is turned off or rebooted

Burn in or image persistence

This network device is used to put each connected network host to its own collision domain

Unmanaged switch operates out of the box without any set up or configuration by switching network traffic based on MAC addresses and putting each switch port into its own collision domain

If the laptop is warm to the touch and the case is bulging to a rounded shape, what is causing this

A defective battery

What are the 3 forms of Micro USB

Micro A Micro B Micro USB 3

This gives you the ability to connect 2-64 physical computers to a single set of hardware devices such as keyboard, monitor, and mouse

KVM

What is port 143

IMAP

What connector terminates an RS-232 serial cable

DB-9 connector

These are pre-paid, a la carte, pay per use, or committed offerings

Metered services

This concept allows the virtual environment to allocate memory and processing capacity for a VMs

Resource pooling

What causes a burning smell in a workstation

Bad power supply

This type of network switch allows an administrator to configure advanced networking and security features

Managed switch

PoE Power over Ethernet can support up to how may watts

15.4 W

PoE+ can support up to how many watts

25 W

What is a device that will automatically enter information about a package when it’s read using light and a lens

Barcode reader uses a sensor mechanism to read the intensity of light reflected by the barcode. The reader then reports the number back to an application software, which links it to a product database

This memory relies on temporary storage space on the hard drive that is used when there is insufficient physical memory available to perform a given task

Virtual memory is an area on the hard disk allocated to contain pages of memory. When the operating system doesn’t have sufficient physical RAM to perform a task, pages of memory are swapped to the paging file. This frees physical RAM to enable the task to be completed

What cables can achieve 10 Gbps

CAT 6A CAT 7 CAT 8 Or fiber optic cable

CAT 5e can handle what throughput

1 Gbps up to 100 meters

CAT 3 can handle what throughput

10 Mbps up to 100 meters

What do you do if the system fails to boot up from the correct drive

Go into BIOS/UEFI setup program and check the existing boot order settings

What happens if you press F8 key during the boot process

It allows the user to choose to boot into Windows in regular or safe mode

What technology is used indoors by companies to locate a shopper’s position in a store and provide them time-sensitive offers or discounts

Bluetooth can determine location within 3-4 meters

What do you need to maximize to run multiple VMs at once effectively

CPU should be multicore and RAM should be 16GB

What wiring standard should be used when installing Ethernet cabling in an office or data center

T-568B are used by most organizations and DOD use T-568A

When you enable Airplane Mode, this disables what on smartphones, tablets or laptops

GPS, cellular, wireless and Bluetooth radios are disabled

This is a tablet-sized device designed for reading rather than general purpose computing

E-reader is used to read digital books and magazines. E-readers use electrophoretic technology to create Electronic Paper Display EPD. EPD has lower power consumption and facilitates high contrast reading in various ambient light conditions

What are the 7 steps of the laser printer

Processing Charging Exposing Developing Transferring Fusing Cleaning

What component in a color laser printer combines the 4 colors before printing it to the paper in one pass

Transfer belt

What does No beep on POST mean

Power supply issue, motherboard problem, faulty onboard speaker

What does continuous beep on POST mean

Problem with system memory modules or memory controller

What does repeating short beeps on POST mean

Power supply fault or motherboard problem

What does 1 Long beep and 1 Short beep on POST mean

Motherboard problem

What does 1 Long beep and 2 or 3 short beeps on POST mean

Video adapter error

What does 3 Long beeps on POST mean

Keyboard issue

What does 2 short beeps on POST mean

POST error and error code shown on screen

What type of wireless network utilizes the 5 GHz frequency band and reaches speeds of up to 6.9 Gbps

802.11ac

What allows a single physical switch to be divided into logical networks

VLAN

What type of IP address should be used for servers to ensure they are easy to find, access, and manage on the network

Static IP address

This is used to create a physical connection to the network that sends a copy of every packet received to a monitoring device for capture and analysis

Network tap

What do you have to do to allow users on the network to have access to the server’s data

Configure file sharing

What record is used for outgoing SMTP and incoming POP/IMAP traffic

MX record

What wireless network utilizes 2.4 GHz and 5.0 GHz frequencies to provide wireless networking at theoretical speeds up to 9.6 Gbps

802.11ax

What is frequency and speed for 802.11g

2.4 GHz and 54 Mbps

What is the frequency and speed for 802.11n

2.4 GHz and 108 Mbps 5.0 GHz and 600 Mbps

What is frequency and speed for 802.11a

5.0 GHz and 54 Mbps

What is the frequency and speed for 802.11b

2.4 GHz and 11 Mbps

What is the frequency and speed for 802.11g

2.4 GHz and 54 Mbps

What do you need when configuring a static IP address

IP address Subnet mask DNS server’s IP address Gateway

An APIPA address is also known as

Link local address

This attack uses multiple compromised computers called zombies to launch the attack against a target

Distributed denial of service DDoS

What display has the best color accuracy when using a 60 Hz refresh rate

IPS has great color accuracy but does not have higher refresh rates sought after gamers

What display has high refresh rates of 120 Hz or 144 Hz and makes them popular with gamers

TN displays

What is a good middle ground between IPS and TN panel displays

VA displays

Which form factor provides a mini card interface used to connect a laptop’s SSD at higher bus speeds than SATA

M.2

What acts as the power supply source for the backlight that uniformly lights up an LCD screen

Inverter

What laptop display requires an inverter

LCD

What network type is used to create a dedicated, independent high-speed network to interconnect and share pools of storage devices to multiple servers

SAN Storage Area Network

Which network standard allows a networking device to provide up to 15.4W of power to connected devices

802.3af

What network standard allows a networking device to provide up to 25W of power to a connected device

802.3at

What connector is used with coaxial cables

F type connector

What can help handle a heavy network load created by sharing large files over the network

Gigabit NIC

What page description language produces faster outputs at the expense of quality

Printer control language

What page description language produces higher quality outputs

Postscript is used in electronic publishing and desktop publishing business

What cables can handle 10 Gbps of throughput

Cat 6a Cat 7 Cat 8 Fiber optic cable

Cat 5e can operate at what throughput

1 Gbps up to 100 meters

Cat 3 can operate at what throughput

10 Mbps at 100 meters

What type of connector is most often used to connect an older smartphone

Micro USB is a mini version of USB

What is an 8-pin/8-position plug or jack commonly used to connect computers onto Ethernet based LAN and consists of two wiring schemes T568A and T568B

RJ-45

Virtual machine has less downtime than a physical server. True or false

True. A virtual machine can be recreated using another clone or restoration from a backup

What is the backup solution for Office 365

OneDrive

What can create and run virtual machines

Hypervisor is known as a virtual machine monitor. It allows one host computer to support multiple guest VMs by virtually sharing its resources, like memory and processing

What are the two main things you need to include for a dedicated virtualization workstation

Maximum RAM Multiple CPU cores

What is a Virtual machine installed without authorization

Rogue VM

What is the uncontrolled deployment of more and more VMs

VM Sprawl

This is the concept that allows a virtual environment to allocate memory and processing capacity for a VMs use

Resource pooling

What network connection type will create a switch that is usable only by the VMs

Private

This is a cloud computing offering where a service provider delivers virtual desktops to end-users over the Internet, licensed with a per-user subscription

Desktop as a Service (DaaS)

These resources is used by virtual machines to communicate with other virtual machines on the same network but prevents them from communicating with resources on the Internet

Virtual internal network

If the motherboard’s LED light is unlit, what could be the cause

The 24-pin power cable is not connected to the motherboard

Loud clicking noises when the system boots up are indicative of what

Hard drive is failing or dirty cooling fan

If the system fails to boot up from the correct drive, what should you do

Go into BIOS/UEFI setup program and check the existing boot order settings

What does F8 key during system boot up allow the user to do

It will allow the user to choose to boot into Windows in regular or safe mode

If the power supply fan is faulty, what should you do

Replace the entire power supply

What causes a workstation to continually crash when using certain applications on the Windows system

Failure or corruption of the memory

What does Function + F8 do on a Dell laptop

It allows you to switch from the internal laptop display to an externally connected screen

What is the temporary storage for running applications

RAM

How can you eliminate a noisy, whining sound coming from a computer

Apply a small amount of oil to the fan’s bearings

What causes a computer to keep rebooting itself

A faulty power supply or a computer that is overheating from cooling fan failure

What causes a foul smelling chemical odor from a computer

Distended capacitor

What devices are are resistant to drops since they have no moving parts or platters in them

NVMe or SSD device

A+ Dion Exam 1 Flashcards

(811 cards)