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A+ Core 1 > Core 1 > Flashcards

Core 1 Flashcards

1
Q

A support technician is working on a motherboard that is 12” x 9.6” and has seven expansion slots. Which form factor is the technician working with?

ATX
mATX
SFF
Mini-ITX

A

ATX

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2
Q

A support technician needs to connect the USB port on a portable monitor to an HDMI port on a laptop to extend the laptop’s display. What kind of cable will the technician use to accomplish this?

SCSI
Adapter
EIDE
DVI

A

Adapter

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3
Q

A support technician opened the case to a PC and saw a square socket component. What component has the support tech located?

RAM
Adapter
CPU
Drive

A

CPU

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4
Q

A support technician is connecting a current standard extended integrated drive electronics (IDE) cable to a PC’s motherboard and knows that pin 1 on the cable must match up with pin 1 on the port. How can the tech know where pin 1 is on the cable?

Pin 1 has a blue stripe.
Pin 1 has a black stripe.
Pin 1 has a red stripe.
Pin 1 has a grey stripe.

A

Pin 1 has a red stripe.

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5
Q

A support technician needs to install an optical disk drive in a new tower. Which panel should be removed so that the technician can gain access to the optical drive and connect the cables?

Through the top panel
Through the side panel
Through the rear panel
Through the bottom of the rear panel

A

Through the side panel

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6
Q

A support technician opened a PC case and observed a small computer system interface (SCSI) connector plugged into the motherboard. What can the technician know to be true about the connector?

It is likely connected to the hard disk.
Each device on a wide SCSI bus must be configured with a unique ID, from 0 to 68.
It transfers data 1 bit at a time.
It only supports 1 device at a time.

A

It is likely connected to the hard disk.

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7
Q

A support technician needs to install a legacy peripheral component interconnect (PCI) sound card. Which of the following statements about PCI is NOT true?

PCI Express supersedes PCI.
PCI uses parallel communications.
The PCI card can fit into the PCIe slot.
PCI is software compatible with PCIe.

A

The PCI card can fit into the PCIe slot.

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8
Q

Which of the following statements regarding modern connectors and ports is untrue?

They use edge contacts.
They use internal connection points.
They sometimes use keying.
They can be reversible.

A

They use internal connection points.

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9
Q

A support technician is installing a PCIe card that will use a combination of system memory and dedicated memory. What type of card is the tech installing?

Graphics
Sound
NIC
Wi-Fi

A

Graphics

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10
Q

A manager directs a support technician to plug a device into the communications (COM) port. What port is the manager referring to?

IDE
SCSI
USB
Serial

A

Serial

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11
Q

A support technician plugged a monitor with a USB C cable connector into a USB C port on the computer, but the monitor would not function. Why would the monitor not work?

It was not an HDMI cable.
It was not a DisplayPort cable.
It was not a Lightning cable.
It was not a Thunderbolt version 3 cable.

A

It was not a Thunderbolt version 3 cable.

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12
Q

A support technician manages digital displays but has some older computers with video cards that can support both analog and digital monitors. What type of video interface do these older computers have?

HDMI
DVI
VGA
DisplayPort

A

DVI

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13
Q

A video production company uses removable media to transport multimedia files to partner and customer sites. Often, the media has to be prepared with only very short notice. In the past, the time taken to transfer files from the development workstations has resulted in delays and missed appointments. To mitigate this issue, the company has procured USB 3.2 Gen 2x2 storage devices and Windows PC workstation expansion cards. The devices and expansion cards support multiple USB hardware port types. Which of the following adapter cables will enable the devices to take full advantage of the highest transfer rate?

Type A to Type A with USB 3 compatibility (denoted by a blue tab)
Type B Micro to Type A with USB 3 compatibility (denoted by a blue tab)
Lightning to Type A
Type C to Type C

A

Type C to Type C

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14
Q

A support technician is installing a new SATA hard drive on a new computer. What is the best type of cable connector the technician will plug in to supply power to the drive?

15-pin connector
7-pin connector
4-pin connector
USB connector

A

15-pin connector

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15
Q

A software developer is creating an application that will run multiple parallel threads through the central processing unit (CPU) at the same time to reduce the amount of “idle time” the CPU spends waiting for new instructions to process. What type of process is the developer taking advantage of?

Multi-socket
Multithreading
Multicore
Processor extensions

A

Multithreading

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16
Q

A technician is installing new RAM in a company’s workstations. The IT supervisor wants all computers to have ECC RAM to ensure high levels of reliability. Which features are NOT associated with ECC RAM? (Select all that apply)

The motherboard and the CPU must support ECC operation for it to be enabled.
Most motherboards support either UDIMMs or RDIMMs, but not both.
If a motherboard supports UDIMM, you can use both types synchronously.
Mixing non-ECC UDIMMs and ECC UDIMMs will work with each other.

A

If a motherboard supports UDIMM, you can use both types synchronously.
Mixing non-ECC UDIMMs and ECC UDIMMs will work with each other.

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17
Q

A hardware technician is ordering power supply units (PSUs) for the organization’s desktop computers. What type of form factor is the technician looking for the PSUs to have from the list below?

ATX
SFF
PCIe
Mini-ITX

A

ATX

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18
Q

An employee is leaving the company and must return any removable storage devices they may have. What devices will the employee most likely return? (Select all that apply.)

Wireless card
USB flash drive
SD card
RAM

A

USB flash drive
SD card

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19
Q

A hardware technician is inspecting the notches on a dual inline memory module (DIMM) edge. What will the notches on the edge connector help the hardware technician determine? (Select all that apply.)

The DDR generation
If it is compatible with the slot
How to insert it properly
If it has a heat sink

A

The DDR generation
If it is compatible with the slot
How to insert it properly

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20
Q

A hardware technician is building a server that will process financial data in real-time and wants to use error correcting code (ECC) RAM that will detect and correct errors, if possible. What other considerations will the technician need to include to support the ECC RAM? (Select all that apply.)

ECC - Capable Motherboard
72-bit data bus
DDR memory module
Two 64-bit data buses

A

ECC - Capable Motherboard
72-bit data bus

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21
Q

A hardware technician is upgrading a device with multiple, identical central processing unit (CPU) packages. What class of computer is the technician most likely upgrading?

Workstation
Mobile
Desktop
Server

A

Server

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22
Q

Which of the following central processing unit (CPU) architectures implement a system-on-chip (SoC) where all the controllers, including video, sound, networking, and storage, are part of the CPU?

IA-32
x86
x64
ARM

A

ARM

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23
Q

An engineer is designing a new computer system and wants to provide active cooling to improve airflow and dissipate heat from around the components. What will the engineer use in the system?

Heat sinks
Fans
Thermal paste
Thermal pads

A

Fans

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24
Q

A hardware technician is purchasing mass storage devices and tells the salesperson that they must use flash memory technology. What type of devices will the salesperson show the technician?

HDD
SSD
RAM
CDs

A

SSD

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25
Q

A student is learning about computer hardware and the instructor selects them to identify the component that executes program instruction code. How should the student respond?

CPU
RAM
Cache
HDD

A

CPU

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26
Q

A hardware technician is scanning a computer’s non-volatile storage devices for errors and infections. Which of the following will the technician include in the scanning? (Select all that apply.)

Hard disk drives
Solid-state drives
Random access memory
Mass storage devices

A

Hard disk drives
Solid-state drives
Mass storage devices

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27
Q

A system engineer is configuring fault tolerance with a configuration that uses a logical striped volume with two mirrored arrays. What redundant array of independent disks is the engineer using?

RAID 0
RAID 1
RAID 5
RAID 10

A

RAID 10
The engineer is configuring RAID 10 which is a nested RAID configuration that combines a logical striped volume (RAID 0) configured with two mirrored arrays (RAID 1).

RAID 0 requires at least two disks and provides no redundancy at all. If any physical disk in the array fails, the whole logical volume will fail.

RAID 1 is a mirrored drive configuration using two disks. Each write operation duplicates on the second disk in the set, introducing a small performance overhead.

RAID 5 uses striping (like RAID 0) but with distributed parity. Distributed parity means that error correction information spreads across all the disks in the array.

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28
Q

A hardware technician installed a new power supply unit (PSU) in a workstation and removed any unnecessary power connector cables. What type of PSU did the technician install?

Modular
Redundant
ATX
ATX12V

A

Modular

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29
Q

A hardware technician is purchasing more servers for an organization and needs to ensure the power supply units in the data center have the correct output to support them. What is a power supply unit’s output capability measured as?

Power
Voltage
Energy star
Wattage rating

A

Wattage rating

> The wattage rating is the measurement of the power supply unit’s output capability. Servers have units rated over 300 W to meet the demands of multiple CPUs, additional memory modules, etc.

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30
Q

A technician loans a laptop to employees when they go on travel and each time an employee returns the laptop the technician reformats it and reloads the operating system and all the software. After several years of following this process, the laptop is sluggish and often freezes. What is most likely to cause this to happen?

Motherboard
SSD
RAM
CDs

A

SSD

> Solid-state drives (SSDs) use flash chips that are susceptible to a type of degradation over the course of many write operations which would cause the laptop to be sluggish and freeze.

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31
Q

A hardware technician is reinstalling a heat sink with a central processing unit (CPU). Which of the following steps should the technician take to reinstall the heat sink? (Select all that apply.)

Clean it.
Thermal paste.
Pop up the CPU at a 45º angle.
Wear an ESD wrist strap.

A

Clean it.
Thermal paste.
Wear an ESD wrist strap.

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32
Q

A hardware technician is working on a new desktop that can send 128 bits of data per transfer rather than 64 bits. What is this referred to as?

Single channel
Dual channel
Triple channel
Quadruple channel

A

Dual channel

> This is a dual-channel memory controller as there are effectively two 64-bit pathways through the bus to the central processing unit (CPU) meaning that each transfer can send 128 bits of data.

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33
Q

A hardware technician is tearing apart a non-functioning computer to salvage parts and pulls out a memory stick that synchronizes its speed to the motherboard system clock and has a peak transfer rate of 1600MBps. What type of memory has the technician removed?

SDRAM
Dynamic RAM
DDR SDRAM
ECC RAM

A

DDR SDRAM

> Modern system RAM is double data rate synchronous dynamic random access memory (DDR SDRAM) and makes two data transfers per clock cycle and has a peak transfer rate of at least 1600MBps.

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34
Q

A technician retrieved a computer from storage, powered it on, and shortly began to notice a burning smell. What does this indicate?

Disk failure
Cabling issues
Overheating
Inaccurate date/time

A

Overheating

> Unusual odors, such as a burning smell or smoke, will almost always indicate something (probably the power supply) is overheating.

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35
Q

A desktop technician has responded to a user whose computer is running slow. The user claims they did not do anything that would cause the computer to run slow. What should the technician do to try to determine the probable cause of the problem? (Select all that apply.)

Repair the problem.
Document the findings.
Conduct research.
Question the obvious.

A

Conduct research.
Question the obvious.

> The technician should conduct research to identify or clarify symptoms and possible causes. One of the most useful troubleshooting skills is being able to perform research to find information quickly.

> The technician should question the obvious as sometimes the simplest things cause seemingly intractable problems. Diagnosis requires both attention to detail and a willingness to be systematic.

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36
Q

A technician is troubleshooting a failed redundant array of independent disks (RAID) configuration and is unable to access the RAID configuration utility. What does this indicate?

Disk failure
Boot process failure
Controller failure
Multiple disk failure

A

Controller failure

> If the technician cannot access the RAID configuration utility, this indicates that the controller itself is likely to have failed. However, the data on the volume should be recoverable.

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37
Q

A desktop technician was troubleshooting a computer that would not connect to the network and suspected that the network interface card (NIC) was not working. However, when the technician tested the NIC, it was working. What will the technician do next?

Establish a new theory.
Implement a plan of action.
Test the theory.
Implement preventive measures.

A

Establish a new theory.

> The technician would establish a new theory as the tests they made or research they conducted proved that their original theory was incorrect.

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38
Q

A technician is troubleshooting a projector that keeps randomly shutting down. What is the most likely cause?

Burned-out bulb
Overheating
Loose cable between the monitor and display
Incorrect data source

A

Overheating

> Overheating typically causes intermittent projector shutdown. Check that the projector’s fan is working, that the vents are free from dust and obstructions and that the ambient temperature is not too high.

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39
Q

A technician is troubleshooting a computer that will not turn on. The technician has verified that the wall socket and devices leading to the computer are working correctly. What could remain as an issue? (Select all that apply).

On-premises distribution circuit
Motherboard
Power supply unit
Power grid

A

Motherboard
Power supply unit

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40
Q

A network technician wants all PCs on the network to go to a server to get their boot settings. What boot option in system settings will the technician configure on the PCs?

Fixed disk
Optical drive
USB
Network/PXE

A

Network/PXE

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41
Q

A technician is implementing a feature that will compare hashes of key system state data during the boot process to ensure that nobody has tampered with the system firmware, boot loader, and OS kernel. What feature is this?

HSM
TPM
Encryption
Boot password

A

TPM

> The technician is implementing the trusted platform module (TPM) which, during the boot process, compares hashes of key system state data to ensure they have not been tampered with.

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42
Q

A technician started up a computer and the power-on self-test (POST) issued a short beep. What does this indicate?

Motherboard problem
Faulty speaker
Normal POST
POST error

A

Normal POST

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43
Q

A user started a brand-new Windows computer and received a “boot device not found” error. When the technician inspects it, what will they suspect the problem is?

POST
BSOD
GPT
Pinwheel

A

GPT

> The technician will suspect the problem is with the GPT as this is a modern boot scheme where the boot information is not on a single sector but still identifies partitions and OS boot loaders.

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44
Q

A technician is troubleshooting a video display that is fuzzy. What has caused this?

Insecure connector
Burn-in
Resolution mismatch
Incorrect color display

A

Resolution mismatch

> If the output resolution does not match the display device’s native resolution, the image will appear fuzzy. This typically happens if the video card’s driver is faulty or incorrectly configured.

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45
Q

A hardware technician is following CompTIA’s A+ troubleshooting model for diagnosing a monitor with a squiggly screen. The technician suspects the monitor screen is squiggly because it is located directly under a fluorescent light. What is the next step the technician should take?

Identify the problem.
Test the theory.
Establish a plan of action.
Verify full system functionality.

A

Test the theory.

> The technician has established a theory of probable cause so the next step in CompTIA’s A+ troubleshooting methodology is to test the theory to determine the cause.

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46
Q

A desktop technician just fixed an issue where a computer would not connect to a network and verified the computer is communicating with the network again. What should the technician do now that will help with future troubleshooting efforts?

Document findings.
Test the theory.
Establish a plan of action.
Refer to vendor instructions.

A

Document findings.

> The technician should document the findings which is very useful for future troubleshooting. Technicians can see if the same solution applies to future problems fitting into the same category.

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47
Q

Every time a user attempts to save a file, the computer shows an error that reads, “Cannot read from the source disk.” What kind of issue does this indicate?

POST issue
Drive issue
Power issue
RAID failure

A

Drive issue

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48
Q

An energy company is strengthening its defenses and wants to look for methods that successfully protect trade secrets by ensuring none of its company computing assets are hijacked by malware. To assist in safeguarding the sensitive information, what can the technician enable to ensure this will not happen?

TPM
HSM
Encryption
Secure boot

A

Secure boot

> The technician can configure secure boot which is a unified extensible firmware interface (UEFI) feature designed to prevent malware from hijacking a computer.

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49
Q

A technician is troubleshooting an issue with a computer. Although the computer is on the network, the server will not authenticate a user. What kind of problem does this indicate?

Disk failure
Inaccurate date/time
Cabling issues
Overheating

A

Inaccurate date/time

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50
Q

A technician is upgrading the system firmware on a PC. Which of the following is the technician upgrading? (Select all that apply.)

System settings
BIOS
Secure boot
UEFI

A

BIOS
UEFI

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51
Q

A desktop technician determined that a computer could not connect to the network because the network drop was not working. What possibilities are open to the technician for getting the computer back on the network? (Select all that apply.)

Repair the drop.
Implement preventive measures.
Replace the drop.
Implement a workaround.

A

Repair the drop.
Replace the drop.
Implement a workaround.

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52
Q

A technician must determine why a computer is overheating. Which of the following may be the cause? (Select all that apply.)

Blanking plates are covering slots.
A fan is not working.
The area is too warm.
There is an invalid cable specification.

A

A fan is not working.
The area is too warm.

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53
Q

A technician started a PC and, when the vendor’s logo came up, pressed the F10 key. What is the technician doing?

Restarting the PC
Accessing the system setup program
Setting a boot password
Enabling secure boot

A

Accessing the system setup program

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54
Q

A network technician is trying to locate the Cat 6A cable in a closet full of unmarked boxes with different types of cabling in them. How will the technician be able to tell which cable is Cat 6A? (Select all that apply.)

The words “twisted pair cable” is on the cable jacket.
The TIA/EIA standard is on the cable jacket.
The Cat specification is on the cable jacket.
The cable type is on the cable jacket.

A

The Cat specification is on the cable jacket.
The cable type is on the cable jacket.

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55
Q

A network technician is connecting a computer to the network using Ethernet. How is the physical connection to the cable made?

Using the MAC address
Using the RJ45 port
Using a patch panel
Using PoE

A

Using the RJ45 port

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56
Q

A company hired a network technician to manage the part of their network that is based on the 802.11 standard. What type of network will the technician be managing?

LAN
Wi-Fi
MAN
WAN

A

Wi-Fi

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57
Q

A technician is able to use the standard adapter built into a computer’s motherboard to connect to the company’s network using a patch cable. What kind of network is the company using?

Bluetooth
Gigabit Ethernet
Fiber optic
Wi-Fi

A

Gigabit Ethernet

58
Q

A network technician sets up the wireless network in such a way that each client device connects to the network via an access point (AP). What type of configuration is this?

Frequency bands
Infrastructure mode
DFS
Channels

A

Infrastructure mode

59
Q

A network technician used a tool that energizes each wire in a cable. When the technician sent energy to some of the wires, the LED on the tool did not light up. What tool was the technician using?

Toner probe
Tone generator
Cable tester
Loopback plug

A

Cable tester

60
Q

A network technician needs to deploy a computer on an Ethernet network and notices that the computer will sit on a shelf directly under a fluorescent light. What type of cable will the technician use?

STP
UTP
Coax
Fiber optic

A

STP

61
Q

A wireless network technician is upgrading the access points in a conference center to provide better Wi-Fi connectivity during conferences. What standard will provide connectivity to the most clients?

MU-MIMO
Wi-Fi 5
OFDMA
Wi-Fi 6

A

Wi-Fi 6

62
Q

A network technician needs to replace a broken Ethernet cable. What kind of connector will the technician use to terminate the new cable?

F-type
RJ-45
SC
LC

A

RJ-45

63
Q

A network technician is upgrading a grocery store’s checkout lines with contactless payment devices. What type of wireless technology are the payment devices based on?

802.11a
Bluetooth
RFID
NFC

A

NFC

64
Q

A network technician is upgrading the wireless network so that it can take advantage of “multiple input multiple output” (MIMO) to increase reliability and bandwidth. What standard is the technician upgrading the wireless network to?

802.11n
802.11g
802.11b
802.11a

A

802.11n

65
Q

An administrator needs to supply power to a handset through the switch; however, the switch does not support Power over Ethernet (PoE). How can the administrator solve this problem?

A managed switch
An unmanaged switch
A power injector
A hub

A

A power injector

66
Q

A company hired an administrator to manage their computers that host the employees’ shared resources and applications. What kind of computers will the administrator manage?

Client
SAN
Server
Datacenter

A

Server

67
Q

A college that has several campuses located in different parts of the city has hired a network technician. What type of network will the technician most likely be working on?

LAN
Wi-Fi
MAN
WAN

A

MAN

68
Q

An organization located on a large piece of rural property needs to connect its office building on the north side of the property with its warehouse and shipping operation on the south side of the property. The organization decides to connect the locations using long-range fixed wireless. What frequency spectrum must the organization use to ensure that nobody else can use the same frequency band?

Unlicensed
Licensed
802.11ax
DFS

A

Licensed

69
Q

A network technician is upgrading a legacy network for a small business and is replacing their legacy hub with a device that learns MAC addresses and uses them to forward frames to only the destination port, rather than sending them out to every port. What kind of device is the technician replacing the hub with?

NIC
Patch panel
PoE
Switch

A

Switch

70
Q

A small company hired a network technician to upgrade its network. Surprisingly the company was still using a legacy hardware device that configures a network into a star topology. What device was this?

Managed switch
PoE-enabled switch
Hub
Patch panel

A

Hub

71
Q

A network technician is installing a device with an inductor that will copy all the traffic coming through the cable to a monitor port. What type of device is the technician installing?

SMF
MMF
Active TAP
Passive TAP

A

Passive TAP

72
Q

A technician is assisting the CISO in wirelessly transferring data between their smartwatch and their corporate PC. What type of network is used to accomplish this task?

Wi-Fi
LAN
PAN
WLAN

A

PAN

73
Q

All the employees in a lawyer’s office communicate with the internet and each other through the same appliance. What kind of network is the office using?

SOHO
Zigbee
PAN
MAN

A

SOHO

74
Q

A company hires a network technician who is reviewing the network setup documentation. The technician sees that the company has fiber optic cable running all the way up to the building. This represents what type of connection?

FTTC
VDSL
ONT
FTTP

A

FTTP

75
Q

A network technician is configuring hosts to request IP configuration from a server. What protocol is the technician configuring?

HTTPS
SSH
DHCP
TFTP

A

DHCP

76
Q

A network technician is checking the records to ensure all the host names match up with the proper IP addresses for the network. What records is the technician checking? (Select all that apply.)

A
MX
FQDN
AAAA

A

A
AAAA

77
Q

An application uses Transmission Control Protocol (TCP) as it requires data to make it to the destination 100% intact. Which of the following are functions of this protocol? (Select all that apply.)

Uses SYN/ACK packets.
Uses TFTP.
Uses negative acknowledgment.
Uses FIN.

A

Uses SYN/ACK packets.
Uses negative acknowledgment.
Uses FIN.

78
Q

A technician is sent to the personal office space of the organizations board to set up a SOHO environment for the executive. While preparing for the home installation, the technician creates a list of items that will be needed to successfully setup and configure the SOHO network. What is the function of using a switch in a SOHO environment?

It connects to the service provider cabling and transfers frames over the link
It allows local computers and other host types to connect to the network via RJ-45 ports
It forwards packets over the WAN interface if a location destination IP address is not available
It allows hosts to connect to the network over Wi-Fi

A

It allows local computers and other host types to connect to the network via RJ-45 ports

79
Q

An application developer wants to ensure packets arrive at the destination in the correct order and none are lost when an application communicates across the network. Which protocol will the application developer use?

UDP
TCP
IP
DNS

A

TCP

> The Transmission Control Protocol (TCP) can identify and recover from lost or out-of-order packets. Failing to receive a packet or processing it incorrectly can cause serious data errors.

80
Q

A network technician is setting static IPv4 addresses on servers. Which settings would be considered optional for ensuring proper communications within a local area network? (Select all that apply.)

The gateway
The alternate DNS
IP address
Subnet mask

A

The gateway
The alternate DNS

81
Q

A network technician is purchasing a digital subscriber line (DSL) service for a business that transfers large amounts of data back and forth between branches. What is the best connection type for the business?

ADSL
ISP
PSTN
Symmetric DSL

A

Symmetric DSL

82
Q

A networking student is learning about IP addressing and discovers which of the following facts are NOT true regarding IPv6?

Divided into two main parts.
Will replace IPv4.
Expressed in hexadecimal notation.
Expressed in dotted decimal notation.

A

Expressed in dotted decimal notation.

83
Q

A network technician must allow employee computers to securely connect to the corporate network from alternate locations. What is the best method for the technician to use?

DMARC
DHCP scope
VPN
VLAN

A

VPN

84
Q

A web designer plans out a new website, including the uniform resource locators (URLs) for each page. What are parts of the URL that the web designer will need to consider? (Select all that apply.)

File server
FQDN
Protocol
File path

A

FQDN
Protocol
File path

85
Q

A network technician troubleshoots a computer on the wired network that is experiencing slow network speeds. Which of the following would NOT be a possible cause for the technician to troubleshoot?

Improperly terminated patch cords
Improper speed/duplex configuration
Another radio source broadcasting at the same frequency
External interference on the cable

A

Another radio source broadcasting at the same frequency

86
Q

A network technician troubleshoots a computer that is getting a limited connectivity message and an address in the automatic private IP addressing (APIPA) 169.254.x.y range instead of receiving a lease for an IP configuration from the DHCP server. What are some steps the technician should take to troubleshoot this issue? (Select all that apply.)

Establish the scope of the issue.
Check the configuration of patch cords.
Check the VLAN configuration.
Sample the elapsed time between arriving packets.

A

Establish the scope of the issue.
Check the configuration of patch cords.
Check the VLAN configuration.

87
Q

A network technician uses a switch configuration interface and sees that a port is continually transitioning between up and down states. What does the network technician witness?

Port flapping
Slow network speeds
RSSI
QoS

A

Port flapping

> Port flapping is when the network interface card (NIC) or switch interface transitions continually between up and down states. Bad cabling, external interference, or a faulty NIC at the host end can cause this to happen.

88
Q

Company employees access the same resources on the internet many times a day. As such, a network administrator configures a solution that forwards traffic to and from the internet and also caches content to improve performance and reduce bandwidth consumption. What solution is the administrator implementing?

NAT
Proxy server
UTM
Load balancer

A

Proxy server

89
Q

A network administrator configures an authentication, authorization, and accounting (AAA) server. Which component in the AAA server setup does not store authentication credentials, but acts as a transit to forward data between devices?

Supplicant
NAP
RADIUS
AAA

A

NAP

> The network access point (NAP) or network access server (NAS) are appliances, such as switches, access points, and VPN gateways. These do not store authentication credentials but simply act as a transit to forward this data between the AAA server and the supplicant.

90
Q

A company uses a database that a developer wrote in-house. Since the database is not supported and the developer has left the organization, what is the database considered to be?

BYOD
Legacy system
Embedded system
UTM

A

Legacy system

91
Q

A network technician troubleshoots an issue where the video conferencing system keeps freezing up and dropping out. The technician determines that signal is not being processed fast enough to meet the streaming requirement. What is this type of issue known as?

Latency
VoIP
QoS
Jitter

A

Latency

> This issue is known as latency which is the time it takes for a signal to reach the recipient. Processing delays at intermediate systems, such as routers, can cause latency to be worse.

92
Q

A network technician is configuring an email connection that will have a permanent connection to the mail server. What kind of email connection is the technician configuring?

SMTP
HTML
POP3
IMAP

A

IMAP

> The Internet Message Access Protocol (IMAP) is a mail retrieval protocol that supports permanent connections to a server and connecting multiple clients to the same mailbox simultaneously.

93
Q

A network technician securely connects to a remote server on port 3389. What protocol does the technician use?

LDAP
SSH
Telnet
RDP

A

RDP

> Remote Desktop Protocol (RDP) is Microsoft’s protocol for operating remote graphical user interface (GUI) connections to a Windows machine. RDP uses port TCP/3389.

94
Q

A security technician is installing a doorbell/video entry system for a customer so that the customer can see and communicate with people who come to their home when they aren’t there. What kind of device is the doorbell/video entry system?

Zigbee
Hub and control system
OT
Smart device

A

Smart device

95
Q

A web designer is securely uploading files to a web server. What protocol is the designer using to do this?

SMB
NetBIOS
FTPS
FTP

A

FTPS

96
Q

As traffic is overloading an organization’s website, the network administrator sets up another web server. What will the administrator configure to distribute traffic between the two servers?

NAT
Proxy server
UTM
Load balancer

A

Load balancer

> A load balancer distributes client requests across server nodes in a farm or pool and can deploy in any situation where there are multiple servers providing the same function.

97
Q

A network technician is troubleshooting an issue where a wireless device only receives an intermittent signal. What could be a possible cause of this? (Select all that apply.)

Another radio source is broadcasting at the same frequency.
There is Wi-Fi analyzer software running.
There is an electromagnetic source nearby.
Something is blocking the signal.

A

Another radio source is broadcasting at the same frequency.
There is an electromagnetic source nearby.
Something is blocking the signal.

98
Q

A developer wants to ensure that all the clients that use their application are always using the latest most updated version. How can the developer make sure of this?

Client-side virtualization
Server-side virtualization
Application virtualization
Container virtualization

A

Application virtualization

> Application virtualization means that the client either accesses an application hosted on a server or streams the application from the server ensuring that they are always using the latest version.

99
Q

A network technician gathers requirements to implement the virtualization of multiple guest VMs that will need to communicate. Which of the following resource requirements will the technician need to employ? (Select all that apply.)

Virtualization support enabled on the CPU
Memory above what the OS requires
Low storage requirements
A virtual network environment

A

Virtualization support enabled on the CPU
Memory above what the OS requires
A virtual network environment

100
Q

Rather than purchasing a fixed number of software licenses, a business only wants to pay for the number of licenses they actually need at any given time. What kind of cloud service model is this business pursuing?

SaaS
IaaS
PaaS
DaaS

A

SaaS

> Software as a service (SaaS) provisions software licenses for a given number of seats so that a business would access software hosted on a supplier’s servers on a pay-as-you-go arrangement.

101
Q

A network technician needs to create a sandbox that has an isolated environment to analyze viruses, worms, and Trojans. What is the most appropriate environment for the technician to do this in?

Client-side virtualization
Server-side virtualization
Application virtualization
Container virtualization

A

Client-side virtualization

> Client-side virtualization is the most appropriate environment. As the guest OS will contain malware, it cannot infect the technician’s computer or network without misconfiguration of the host.

102
Q

A developer wants to ensure that no matter what server an administrator deploys their application on, it has all the libraries and dependencies needed for the application to operate properly. How can the developer accomplish this?

Client-side virtualization
Server-side virtualization
Application virtualization
Container virtualization

A

Container virtualization

> Container virtualization enforces resource separation at the OS level and includes the variables and libraries required by the application process in the container.

103
Q

A cloud administrator configures a cloud instance to increase its resources during times of high utilization and decrease its resources when peak utilization times end. What cloud characteristic does this represent?

HA
Scalability
Metered utilization
Rapid elasticity

A

Rapid elasticity

> Rapid elasticity refers to the system’s ability to handle changes to demand in real time. A system with high elasticity will not experience loss of service or performance if demand suddenly increases.

104
Q

A network technician installs virtual machines in hypervisor software that runs on a host operating system (OS). What kind of hypervisor setup is this? (Select all that apply.)

Type 1
Type 2
Guest OS
Bare metal

A

Type 2
Guest OS

> In Type 2 hypervisors, the hypervisor application installs onto a host OS, and the computer must have resources to run the host OS, the hypervisor, and the guest operating systems.

> In a guest OS (or host-based) system, the hypervisor application is itself installed onto a host OS. The hypervisor software must support the host OS.>

105
Q

For security reasons, an organization needs to ensure that its information is isolated and managed only by its employees. What cloud model should this organization adopt?

Public
Private
Community
Hybrid

A

Private

> Private cloud infrastructure is completely private to and owned by the organization. This type of delivery method is more appropriate to organizations that require strict access control in their operations.

106
Q

A cloud service provider is taking advantage of software-defined networking (SDN) to allow customers to provision and deprovision cloud resources on-demand. Which layer of SDN does the SDN controller operate on?

API
Infrastructure
Application
Control

A

Control

107
Q

A network technician configures a foundational cloud setup that will allow the developers to start all application development using a standardized server and database setup. What type of cloud service model is the technician configuring?

SaaS
IaaS
PaaS
DaaS

A

PaaS

> Platform as a service (PaaS) would deploy servers and storage network infrastructure (as per IaaS) but also provide a multi-tier web application/database platform on top.

108
Q

A Windows-based laptop has an internal battery that requires tools to access and remove. What steps should a repair technician take prior to opening the laptop to install a replacement? (Select all that apply.)

Discharge the battery.
Power the laptop off.
Disconnect the AC power.
Charge the battery.

A

Power the laptop off.
Disconnect the AC power.

109
Q

A user returned a new laptop to the helpdesk with complaints that the screen was too dark and that the desktop image they put on it burned into the display. What kind of display does the laptop have?

Touch screen
LED
TFT
OLED

A

OLED

> In an organic light-emitting diode (OLED) display, or technically an advanced matrix OLED (AMOLED), the panel does not require a separate backlight but the screen is darker and images burn into the screen easier.

110
Q

A mobile device user is traveling out of the area and left their device somewhere outside. The user wants to track where they last had their mobile device in order to retrace their steps and find the device. Which of the following options is the system that relies solely on satellite communication to pinpoint a device’s location and help the user find their device?

Geolocation
Location Service
Near Field Communication
Global Positioning System

A

Global Positioning System

111
Q

A technician plans a memory upgrade for a fleet of computers for sales users. When evaluating the various types of memory modules, what module types are commonly used for ultraportable laptops? (Select all that apply.)

DIMM
SODIMM
Mini-DIMM
Micro-DIMM

A

Mini-DIMM
Micro-DIMM

112
Q

A network technician is purchasing new displays for the graphics design team. Which type of thin-film transistor (TFT) will be optimal for supporting that type of work?

TN
Digitizer
In-plane switching
VA

A

In-plane switching

113
Q

A user notices that a smartphone is not functioning properly. Switching between applications takes an excessive amount of time. What symptoms should a technician look for?

Power drain
Resource usage
Data usage
Malware activity

A

Resource usage

114
Q

A user states that a mobile phone does not hold a very good charge. What might the cause be? (Select all that apply.)

Improper battery charging
Lack of power management
An aging battery
Daily use of the device

A

Improper battery charging
Lack of power management
An aging battery

115
Q

A user purchased their first smartphone and wants to download useful apps to it. What must the user do before they can use the app store?

Grant privileges.
Synchronize between multiple devices.
Autodiscover.
Configure an account.

A

Configure an account.

> The owner of a mobile device configures an account when they use the device for the first time. This account manages the apps installed on the device and represents the user on the app store.

116
Q

A user utilizing an external mouse complains that when typing on a laptop keyboard, the cursor slowly moves across the screen. What actions can the help desk perform to prevent this behavior from happening? (Select all that apply.)

Adjust the sensitivity setting.
Disable the touchpad.
Update the driver.
Replace the keyboard.

A

Adjust the sensitivity setting.
Disable the touchpad.
Update the driver.

> On a laptop, if touchpad sensitivity is too high, typing can cause vibrations that move the cursor. A sensitivity setting can adjust mouse behavior.

On a laptop, the user’s hand placement may hover extremely close to the touchpad, thus causing the mouse to move while typing. Although not ideal, the help desk can disable the touchpad either through software or a function key on the laptop.

It is possible that a driver update is required for the mouse to behave normally. Software drivers often fix glitches and provide updates to functionality.

117
Q

A user’s device allows them to bypass the screen lock using biometric authentication. Which of the following are biometric authentication methods the user can configure? (Select all that apply.)

PIN
Fingerprint reader
Facial recognition
Voice recognition

A

Fingerprint reader
Facial recognition
Voice recognition

118
Q

A non-tech savvy laptop user orders a new hard drive from a large online retailer to install in the laptop. When the drive arrives, the user discovers that it is physically too big to install. What size drive did the user order?

1.8 in.
9.5 mm
7 mm
3.5 in.

A

3.5 in.

> A 3.5” disk drive is the traditional drive size that is used in desktop systems. These are magnetic drives.

119
Q

A traveling user looks to purchase a smartphone that has a high tolerance for differing environments. This includes indoor and outdoor use. What ingress protection (IP) rating does the user look for when wanting to protect the device from solids as best as possible?

IP67
IP57
IP58
IPX8

A

IP67

> Some mobile-device cases provide a degree of waterproofing. Waterproofing is rated on the ingress protection (IP) scale. The first (6) is a rating for repelling solids. In this case, dustproof.

120
Q

A network technician trains a new employee on the company devices they received during orientation. Which devices will have both a front and rear camera? (Select all that apply.)

Digital camera
Smartphone
Tablet
Webcam

A

Smartphone
Tablet

121
Q

An organization that does not support the autodiscovery feature for email servers is deploying new phones to its team. A user is configuring their email server on their new device. What options could the user enter in the incoming mail server field to implement a proper configuration? (Select all that apply.)

FQDN
IP address
SMTP server address
Ports

A

FQDN
IP address

122
Q

A technician needs to replace a solid-state drive (SSD) in a user’s laptop. The technician requested the purchasing department to order a drive that has higher bus speeds than other SSDs and fits into a PCI Express bus. Which drive type does the purchasing department order?

M.2
mSATA
SATA
uSATA

A

M.2

> An M.2 SSD usually interfaces with the PCI Express bus, allowing much higher bus speeds than SATA. M.2 adapters can be of different lengths.

123
Q

A user would like to take advantage of biometric technology for a quicker and more secure login to a laptop. The user discovers the laptop has no built-in technology for biometrics. What solution does the IT department offer?

Near-field scanner
USB peripheral device
Keyboard replacement
Touchpad replacement

A

USB peripheral device

124
Q

A warehouse user reports an issue with a laptop to the IT helpdesk. The issue is that the laptop becomes very hot after only a few minutes of use whether it is plugged in or not. The user states that laptop use is under the usual circumstances. What does IT conclude the likely problem to be?

Faulty AC adapter
Battery discharging
Dust and debris
Room temperature

A

Dust and debris

> . Dust trapped in laptop cooling vents acts as an insulator and can prevent proper cooling. It can also slow or stop the fan. The vents are likely the issue due to the warehouse environment.

125
Q

Enterprises use different deployment models to specify how they provision mobile devices and apps for employees. Which function of enterprise management allows the organization to perform remote wipes on devices?

App store
EMM
MDM
MAM

A

MDM

> Mobile device management (MDM) sets device policies for authentication, feature use (camera and microphone), and connectivity. MDM can also allow device resets and remote wipes.

126
Q

A company uses cell phones that do not have SIM cards and can only be managed by a specific network provider. The company wants to buy 3G cell phones that have SIM cards so they can switch to any chosen provider. What network type best suits the company’s needs?

GSM
CDMA
PRL
LTE

A

GSM

> Global System for Mobile Communication (GSM) allows subscribers to use a removable subscriber identity module (SIM) card to use an unlocked handset with their chosen network provider.

127
Q

A network technician is working from a coffee shop and does not want to use their insecure wireless connection. What can the technician enable on his smartphone to provide his laptop with his own Wi-Fi connectivity?

Airplane mode
Cellular data networking
Hotspot
Bluetooth

A

Hotspot

> A hotspot is using the cellular data plan of a mobile device to provide internet access to a laptop or PC. A USB, Bluetooth, or Wi-Fi (a mobile hotspot) can tether the PC to the mobile device.

128
Q

A support technician at a corporate office needs to recommend a new laser printer for the administrative office. The office personnel requests a printer that will automatically print on both sides of the paper. What does the technician need to look for to make the proper decision on which printer to purchase?

Paper handling
Duplex unit
Finisher unit
Input tray capacity

A

Duplex unit

129
Q

A support technician at a corporate office needs to recommend a new multifunction printer for the administrative office. Since the office commonly prints and scans photos and high graphic items, the technician needs to select a multifunction printer that will meet this need. What characteristics should the technician review to choose the correct multifunction printer? (Select all that apply.)

Output tray capacity
Pages per minute (PPM)
Dots per inch (DPI)
Pixels per inch (PPI)

A

Dots per inch (DPI)
Pixels per inch (PPI)

130
Q

A support technician at a corporate office needs to recommend a new laser printer for the administrative office. The office prints multiple types and sizes of documents, labels, envelopes, and other materials. What does the technician need to look for to make the proper decision on which printer to get?

Output tray capacity
Pages per minute (PPM)
Paper handling
Input tray capacity

A

Paper handling

131
Q

The office inkjet printer is missing lines when it is printing. What is the correct maintenance step that needs to be performed in the printer?

Print head alignment
Print head cleaning
Load roller replacement
Eject roller replacement

A

Print head cleaning

> A blocked or dirty print head nozzle will show on the printed material as a missing line. This can typically be corrected by running a print head cleaning cycle.

132
Q

When an employee prints to a newly installed printer, the printed pages only have a few characters on each page. What type of error is this?

Print quality issue
Garbled print issue
Printer connectivity issue
Print spooler issue

A

Garbled print issue

> When a printer prints multiple blank pages or pages with only a few characters on them, this is garbled printing. This commonly occurs because of a missing or incorrect print driver.

133
Q

What type of printer uses a heating element to create images on paper?

Inkjet printer
Laser printer
3-D printer
Thermal printer

A

Thermal printer

> A thermal printer is a printer that uses a heating element to create an image on the printed media.

134
Q

An employee prints documents and photos on the office inkjet printer, but they are printing in the wrong color. What is the correct maintenance step the employee needs to perform on the printer?

Print head cleaning
Ink cartridge replacement
Print head alignment
Eject roller replacement

A

Ink cartridge replacement

135
Q

What type of printer builds a solid object from successive layers of material?

Inkjet printer
Laser printer
3-D printer
Thermal printer

A

3-D printer

> A 3-D printer builds a solid object from successive layers of material. Though there are multiple types of 3-D printers with varying functions, common printer maintenance includes cleaning the print bed and extruder and replacing used filament.

136
Q

A support technician at a corporate office needs to recommend a new laser printer for the administrative office. One of the considerations is the speed of the printer. How is the basic speed of a printer measured?

Output tray capacity
Pages per minute (PPM)
Dots per inch (DPI)
Pixels per inch (PPI)

A

Pages per minute (PPM)

> The basic speed of a printer is measured in pages per minute (PPM). Different printers may also have varying PPM based on what is printing.

137
Q

A printer support technician at a corporate office receives a call from the administrative office that their printer is showing online, but nothing is printing out. When checking the print server, there are multiple documents queued for the printer. What type of error is this?

Print quality issue
Garbled print issue
Printer connectivity issue
Print spooler issue

A

Print spooler issue

> If the printer is online, but multiple jobs are queued and a job cannot be deleted, this is a symptom of a print spooler issue. A restart of the print spooler service may be required.

138
Q

A printer support technician at a corporate office receives a call from the administrative office that the office inkjet printer is online but it is making a grinding noise while printing. What type of error is this?

Paper jam
Print quality issue
Carriage mechanism fault
Incorrect page orientation

A

Carriage mechanism fault

> A carriage mechanism holds the ink cartridges in an inkjet printer. Grinding noises during printing are a symptom of a carriage mechanism fault.

139
Q

When printing to a multifunction printer, the printer staples the pages sideways. What type of error is this?

Paper jam
Print quality issue
Carriage mechanism fault
Incorrect page orientation

A

Incorrect page orientation

140
Q

A printer support technician at a corporate office receives a call from the administrative office that their laser printer is online, but office employees can not print. When examining the printer, the technician finds paper lodged in the fuser unit. What type of error is this?

Paper jam
Print quality issue
Carriage mechanism fault
Incorrect page orientation

A

Paper jam

141
Q

An employee receives a brand-new inkjet printer. The output prints documents and photos that appear skewed. What is the correct maintenance step the employee needs to perform on the printer?

Print head alignment
Print head cleaning
Load roller replacement
Eject roller replacement

A

Print head alignment

> An improper alignment of the print head will make output media appear skewed when printed. Calibrating the printer will correct this.

142
Q

A support technician at a corporate office needs to recommend a new laser printer for the administrative office. The office personnel requests a printer that they will not have to refill as often as their current printer. What does the technician need to look for to make the proper decision on which printer to get?

Output tray capacity
Pages per minute (PPM)
Paper handling
Input tray capacity

A

Input tray capacity

> The input tray capacity is the total number of pages per media type that the printer can support.

A+ Core 1 (3 decks)

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