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Professor Messer A+ 1001 > Exam 3 > Flashcards

Exam 3 Flashcards

1
Q

C6. A system administrator has been assigned the task of installing an
operating system, application, and data onto a cloud-based server.
Which of these best describes this scenario?
❍ A. Infrastructure as a Service
❍ B. Platform as a Service
❍ C. Hybrid Cloud
❍ D. Software as a Service

A

The Answer: A. Infrastructure as a Service
IaaS (Infrastructure as a Service) provides the CPU, memory, storage,
and other infrastructure components necessary for the installation of an
operating system and application.

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2
Q

C7. A network engineer is installing a device that will allow wireless devices to
access the wired Ethernet network. Which of the following would BEST
describe this technology?
❍ A. Hub
❍ B. Managed switch
❍ C. VLAN
❍ D. WAP

A

The Answer: D. WAP
A WAP (Wireless Access Point) is a device that bridges the 802.11
wireless network together with a wired Ethernet network. Since the
WAP is acting as a bridge, it’s making forwarding decisions based on the
destination MAC address of the network frame.

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3
Q

C8. A systems administrator has added a new video adapter to a desktop
computer, installed the latest video driver, and rebooted the system.
When the system starts, it continuously reboots before it reaches the
login prompt. Which of the following would be the BEST next
troubleshooting step?
❍ A. Press F8 during startup and choose “Boot from last known
working configuration”
❍ B. Upgrade the system BIOS using an update file from the
motherboard manufacturer
❍ C. Disconnect all USB storage devices and restart the system
❍ D. Reinstall the operating system

A

The Answer: A. Press F8 during startup and choose
“Boot from last known working configuration”
If a recent configuration causes a boot issue, Windows provides a way to
restart the operating system using the last known working configuration.
Each time Windows successfully boots, it makes a backup of that
configuration. If the startup option to “boot from last known working
configuration” is selected, that working backup is used instead of the
current Windows configuration. This can help resolve reboot issues like
those detailed in this question.

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4
Q

C9. A system administrator is configuring a lab computer that will run five
server VMs at the same time. Which of the following hardware resources
will be the MOST important for this configuration?
❍ A. CPU
❍ B. Storage space
❍ C. Video adapter
❍ D. NIC

A

The Answer: B. Storage space
Adding five virtual machines to a single device would require as much
storage space as five separate operating systems. Of the available options,
the system storage will be used the most.

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5
Q

C10. A user would like a tablet that can control the television volume and
cable box channels at home. Which of the following tablet features would
MOST likely be required?
❍ A. NFC
❍ B. Bluetooth
❍ C. IR
❍ D. Hotspot

A

The Answer: C. IR
IR (Infrared) communication is a line-of-sight connection that is
commonly used for low-bandwidth applications over a relatively short
distance. Infrared is commonly used to control televisions and other home
entertainment systems.

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6
Q

C11. Which of the following would provide segmentation of broadcast
domains on the same physical switch?
❍ A. VLAN
❍ B. DNS
❍ C. VPN
❍ D. DHCP

A

The Answer: A. VLAN
A VLAN (Virtual Local Area Network) is used to segment interfaces
on a single switch or across multiple switches. This allows a network
administrator to separate networks on a single switch instead of installing
multiple physical switches.

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7
Q

C12. A user is reporting that every page printed from a networked laser printer
appears as garbled graphics and text characters. Which of the following is
the MOST likely cause of this issue?
❍ A. Incorrect printer driver
❍ B. Damaged network cable
❍ C. Printer is low on memory
❍ D. Toner is low

A

The Answer: A. Incorrect printer driver
The printer driver formats the print job into a language that the printer
can understand. If the incorrect driver is used, the language sent to the
printer may not be interpreted correctly and the output may appear very
different than the original document. In extreme cases, the output may
appear as readable pages of garbled text and graphics.

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8
Q

C13. During a presentation in a conference room, the lamp in an LCD
projector is turning off every five minutes and back on five minutes later.
Which of the following would be the MOST likely reason for this issue?
❍ A. The video cable is faulty
❍ B. The display lamp has failed
❍ C. The cooling process is failing
❍ D. The display resolution is incorrect

A

The Answer: C. The cooling process is failing
If an LCD (Liquid Crystal Display) projector becomes overheated, it
will automatically turn off to protect the bulb and other components.
This is similar to the automatic protections found in laptop and desktop
computers, and once the system cools down it can be restarted. If the
cooling fans are blocked or not working, this process may continue the
cycle until the cooling problem is resolved.

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9
Q

C14. A system administrator has just completed a memory upgrade on a
database server. When starting the system, this message is displayed:
“Boot Device Not Found.” The BIOS configuration does not show any
hard drives in the system. Which of the following would be the NEXT
best troubleshooting step?
❍ A. Replace the hard drive
❍ B. Upgrade the BIOS
❍ C. Check the hard drive cables
❍ D. Modify the BIOS boot sequence

A

The Answer: C. Check the hard drive cables
A memory upgrade would require work inside of a computer case, and it’s
very easy to accidentally unseat or disconnect other cables. Since the only
change was the memory upgrade, a change to the storage subsystem would
not be expected. The most likely cause would be a cable issue.

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10
Q

C15. If a laptop’s inverter is faulty, which of the following would be the MOST
likely result?
❍ A. The battery will not recharge
❍ B. The system will not power on
❍ C. The screen will be difficult to see
❍ D. The USB interfaces will not be powered

A

The Answer: C. The screen will be difficult to see
The inverter is used to convert the DC (Direct Current) power inside of
the laptop to AC (Alternating Current). The AC power is then used to
power the CCFL (Cold Cathode Florescent Lamp) backlights found in
older laptop computers. Without the backlight, it will be very difficult to
see the information displayed on an LCD (Liquid Crystal Display) screen.

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11
Q

C16. What is the most common use for the switch on a computer’s
power supply?
❍ A. Sets the input voltage
❍ B. Controls the speed of the CPU
❍ C. Sets the cooling fan speed
❍ D. Boots from different operating system partitions

A

The Answer: A. Sets the input voltage
The input voltage to a power supply should match the capabilities of the
power supply unit. Many power supply units are auto-switching, and they
will automatically adjust between 120 volts and 240 volts based on the
input voltage. Alternatively, some power supply units have a switch that
must be manually set to specify input voltage.

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12
Q

C17. Which of these devices would be required to use an 802.1Q trunk?
❍ A. Router
❍ B. Repeater
❍ C. Managed switch
❍ D. Cable modem

A

The Answer: C. Managed switch
A managed switch includes features not found in an unmanaged switch,
such as traffic prioritization, redundancy support, remote management,
and VLAN (Virtual Local Area Network) support for connectivity to
other switches via 802.1Q.

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13
Q

C18. Rodney, a user in the manufacturing department, would like to have a
local backup of his iPhone data. Which of the following would provide
this backup?
❍ A. Download the phone data from iCloud
❍ B. Use iTunes to perform a local backup
❍ C. Connect the iPhone directly to an external storage device
❍ D. Connect using USB and copy the files from File Manager

A

The Answer: B. Use iTunes to perform a local backup
Apple’s iTunes application can be used to manage iOS devices, and it also
includes a backup and restore feature. Backups can be performed over a
wireless connection or from a directly connected iOS device.

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14
Q

C19. A network administrator needs to connect Ethernet between two
buildings that are located across the parking lot from each other. The total
distance between the buildings is approximately 400 meters. Which of the
following technologies would be the BEST choice for this installation?
❍ A. Coax
❍ B. Category 6A
❍ C. Fiber
❍ D. UTP

A

The Answer: C. Fiber
Fiber optic communication can extend over very long distances using light
instead of radio frequencies. Since the maximum supported distance of
most Ethernet connections using copper are one hundred meters, any type
of connection that needs additional distance would be a good candidate
for fiber optic cabling.

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15
Q

C20. A systems administrator needs to configure a smartphone to retrieve
email messages from the corporate mail server. Which of the following
protocols could be configured for this purpose? (Pick TWO)
❍ A. IMAP
❍ B. AFP
❍ C. SMTP
❍ D. LDAP
❍ E. POP3
❍ F. SNMP
❍ G. SMB

A

The Answer: A. IMAP and E. POP3
The two most common protocols used to retrieve email messages are
IMAP (Internet Message Access Protocol) and POP3 (Post Office
Protocol 3).

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16
Q

C21. An administrator would like to maintain an inventory of company-owned
smartphones in a central database. Which of the following would allow
the administrator to identify a unique physical mobile device?
❍ A. IP address
❍ B. IMEI
❍ C. Phone number
❍ D. PRL

A

The Answer: B. IMEI
The IMEI (International Mobile Equipment Identity) is a unique number
associated with a physical device. No other mobile phone or cellular device
in the world shares the same IMEI, so it’s a common way to reliably
identify a unique mobile device.

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17
Q

C22. Which of these cloud computing architectures would BEST describe
several organizations sharing the same resources?
❍ A. Community
❍ B. IaaS
❍ C. Public
❍ D. Hybrid

A

The Answer: A. Community
A community cloud model is often used by multiple organizations to
build a pool of resources with their combined financial contributions.
This multi-tenant model provides a shared cloud-based deployment to
organizations with similar goals and objectives.

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18
Q

C23. What port should be configured in a firewall to block secure terminal
communication?
❍ A. 23
❍ B. 443
❍ C. 22
❍ D. 110

A

The Answer: C. 22
Port 22 is used by SSH (Secure Shell), the encrypted terminal
communication protocol.

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19
Q

C24. The cooling fan controller in a server is failing. The server administrator
has tested possible reasons for the failures and has created a plan for
correcting the issue. Which of the following would be the best NEXT
troubleshooting step?
❍ A. Verify the fan controller is working properly
❍ B. List possible reasons for the controller failure
❍ C. Present the plan to the change control team
❍ D. Test for full functionality

A

The Answer: C. Present the plan to the change control team
Change control is an important part of the troubleshooting process for any
organization. When the change control committee approves the plan, the
fix can be tested and the issue can be documented.

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20
Q

C25. A desktop administrator is troubleshooting an LCD display that shows a
faint image at the bottom right of the screen. The faint image is displayed
even when spreadsheets or browser screens are shown. Which of the
following would be the MOST likely reason for this issue?
❍ A. Stuck pixels
❍ B. Incorrect resolution
❍ C. Bad video cable
❍ D. Burn-in

A

The Answer: D. Burn-in
If an image is shown on a screen for an extended period of time, the
display may continue to show a faint “ghost” of the image after the display
has changed. This burn-in may be temporary, but it can be permanent in
extreme circumstances.

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21
Q

C26. A systems administrator is troubleshooting a laptop that appears to
boot normally, but nothing appears on the LCD display. After closer
inspection, the administrator notices that text appears on the display
but the output is so faint that it’s difficult to see anything. What is the
MOST likely cause of this issue?
❍ A. The video card is faulty
❍ B. The laptop is not receiving enough power
❍ C. The video driver is not configured properly
❍ D. The inverter is faulty

A

The Answer: D. The inverter is faulty
The inverter on some LCD (Liquid Crystal Display) screens is used to
convert the internal DC (Direct Current) to AC (Alternating Current)
for use by the CCFL (Cold Cathode Fluorescent Lamp) backlights. If
the inverter has failed, the backlights will not operate and it will be very
difficult to read the information on the LCD screen.

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22
Q

C27. A network administrator has installed a fifty meter network connection
from one side of the building to the other, and now he would like to make
sure that the punch-downs and crimps are connected to the correct pins
on each side. Which of these tools would be the best way to confirm the
wiring map?
❍ A. Multimeter
❍ B. Cable tester
❍ C. Toner probe
❍ D. Loopback plug

A

The Answer: B. Cable tester
A cable tester can quickly perform a wire map to determine if all of the
wires were properly crimped or punched down on both ends of the cable.

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23
Q

C28. Which of these characteristics would be MOST associated with a thin
client workstation?
❍ A. Multiple CPUs
❍ B. Specialized GPU
❍ C. Network connectivity
❍ D. Maximum RAM installed

A

The Answer: C. Network connectivity
Thin client computers are viewing applications that are run on a separate
computer across the network, so the hardware requirements would be
minimal. Since most of the application use occurs across the network, the
NIC (Network Interface Card) would be an important component of any
thin client.

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24
Q

C29. A user in the shipping department would like to connect multiple
displays to a desktop computer. Which of the following would support
this requirement? (Pick TWO)
❍ A. RJ45
❍ B. Lightning
❍ C. Fiber
❍ D. HDMI
❍ E. DB-9
❍ F. DVI-D

A

The Answer: D. HDMI and F. DVI-D
HDMI (High-Definition Multimedia Interface) and DVI-D (Digital
Visual Interface-Digital) are two common video connections. Some video
adapters will provide multiple video connection types and allow different
video outputs for each interface.

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25
Q

C30. A user is trying to listen to a playlist on a pair of wireless speakers, but
the speakers are not visible from the music app. The user has restarted
the smartphone and the speakers, but the problem has not been resolved.
Which of the following would be the BEST way to correct this issue?
❍ A. Restart the smartphone
❍ B. Pair the smartphone with the speakers
❍ C. Replace the speakers
❍ D. Install updated drivers in the smartphone

A

The Answer: B. Pair the smartphone with the speakers
A Bluetooth device must be paired with a mobile phone or tablet to
appear available to applications. Once the Bluetooth speakers are paired
with the smartphone, the speakers should appear in the music app.

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26
Q

C31. A network administrator has configured a wireless network to use two
contiguous 20 MHz bonded channels on the 2.4 GHz band. Which of
these wireless standards is in use?
❍ A. 802.11ac
❍ B. 802.11b
❍ C. 802.11n
❍ D. 802.11g

A

The Answer: C. 802.11n
The 802.11n standard can operate with 20 MHz channel bandwidths
or two contiguous 20 MHz channels to provide a 40 MHz channel
bandwidth. If the 802.11n network is using the 2.4 GHz range, much
of the available bandwidth will be consumed with this single 40 MHz
transmission range.

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27
Q

C32. A system administrator has found that other companies in the same office
building have been connecting to her private wireless network. Which of
the following would limit this access to the wireless network?
❍ A. Enable WPA2 encryption
❍ B. Change the wireless channel
❍ C. Assign QoS values
❍ D. Configure NAT

A

The Answer: A. Enable WPA2 encryption
WPA2 (Wi-Fi Protected Access II) encrypts network traffic and prevents
unauthorized users from accessing the wireless network.

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28
Q

C33. A network engineer is installing a cable modem at a remote site. Which
of these connectors would commonly be found on a cable modem?
❍ A. BNC
❍ B. eSATA
❍ C. SCSI
❍ D. F-connector

A

The Answer: D. F-connector
The F-connector is the common coax screw-on connector used for
television cable or cable modems. A cable modem installation will often
use coax from the cable provider, and the F-connector is used to connect
the coax to the cable modem.

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29
Q

C34. A technician has just upgraded the memory on a desktop computer. After
the computer runs for a few minutes, the system locks up completely and
does not respond to keyboard or mouse input. After rebooting, no error
messages are found in Event Viewer. Which of the following would be
the BEST next troubleshooting step?
❍ A. Reinstall the operating system
❍ B. Upgrade the BIOS
❍ C. Update device drivers
❍ D. Run hardware diagnostics

A

The Answer: D. Run hardware diagnostics
Issues that result in the system hanging without any additional
information can be frustrating to troubleshoot. Since there are no error
messages or log entries associated with the issue, the best option would be
to perform a hardware diagnostic and at least confirm that the hardware is
working
as expected.

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30
Q

C35. Which of these network types would MOST likely be categorized
as a WAN?
❍ A. A point-to-point connection to an office in another country
❍ B. A fiber connection to a building across a campus
❍ C. A connection to a remote office on the other side of town
❍ D. A link between a mobile device and an automobile

A

The Answer: A. A point-to-point connection to an office
in another country
WAN (Wide Area Network) connections are between locations in
different cities, states, or countries.

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31
Q

C36. Which of these tools would be the MOST appropriate when working
with 110 blocks?
❍ A. Loopback plug
❍ B. Multimeter
❍ C. Crimper
❍ D. Punch-down tool

A

The Answer: D. Punch-down tool
Punch-down tools are used to attach individual wires into punch-down
blocks such as the 66 block or 110 block. The punch down tool pushes
wires into the block and cuts any excess wire from the block.

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32
Q

C37. A system administrator is configuring the IP address settings on a remote
server. Which of these settings would enable the server to communicate
with other devices using a fully qualified domain name?
❍ A. DHCP
❍ B. IP address
❍ C. DNS
❍ D. Subnet mask

A

The Answer: C. DNS
A DNS (Domain Name System) server provides the conversion between
fully qualified domain names and IP (Internet Protocol) addresses. With a
DNS, we can refer to servers by their name instead of using IP addresses.

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33
Q

C38. Which of the following devices makes forwarding decisions based on
destination IP address?
❍ A. Repeater
❍ B. Router
❍ C. Hub
❍ D. Managed switch

A

The Answer: B. Router
A router decides the next hop of an packet based on the packet’s
destination IP (Internet Protocol) address.

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34
Q

C39. A system administrator has been tasked with running an application from
one system architecture on a computer running a completely different
system architecture. Which of the following would BEST describe this
requirement?
❍ A. Virtualization
❍ B. Elevation
❍ C. Emulation
❍ D. Synchronization

A

The Answer: C. Emulation
The best environment for running an application is the system architecture
in which it was originally designed. However, there may be instances
where the original architecture may be unavailable. In those instances,
it may be possible to emulate the original system architecture on a
completely different computing system.

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35
Q

C40. A user in the accounting department had a new laptop delivered and
installed, but they are reporting that the network throughput seems much
slower than the previous computer. Which of the following would be the
most likely cause of these slow transfer speeds?
❍ A. Incorrect SSID
❍ B. Device is assigned an APIPA address
❍ C. Incorrect gateway configuration
❍ D. Duplex mismatch
❍ E. Device is assigned an RFC 1918 address

A

The Answer: D. Duplex mismatch
A mismatch of half-duplex and full-duplex will not cause a total
disruption of network communication, but it will cause the network to
have slow performance.

36
Q

C41. A workstation is configured with a video card that outputs DVI-D,
but it needs to connect to an LCD projector that requires an HDMI
connection. Which of the following would be the BEST way to connect
this workstation to the projector?
❍ A. DVI-D to HDMI adapter
❍ B. Digital to analog converter
❍ C. VGA to HDMI adapter
❍ D. USB to HDMI converter

A

The Answer: A. DVI-D to HDMI adapter
DVI-D (Digital Visual Interface-Digital) and HDMI (High-Definition
Multimedia Interface) are electrically compatible and only require an
interface adapter to connect between devices. No conversion of the video
signal is required between DVI-D and HDMI.

37
Q

C42. An Android user needs to transfer some presentations from their desktop
computer to their smartphone. Which of the following would be the
BEST choice?
❍ A. Lightning
❍ B. RJ45
❍ C. USB-C
❍ D. Thunderbolt

A

The Answer: C. USB-C
USB-C is a connection type used on many Android-based devices.

38
Q

C43. What type of network connection is commonly used by DSL?
❍ A. Coax
❍ B. Fiber optic
❍ C. Line-of-sight
❍ D. Twisted pair copper

A

The Answer: D. Twisted pair copper
DSL (Digital Subscriber Line) networks use the same twisted pair copper
as traditional phone lines.

39
Q

C44. A workstation has been configured with a gigabit NIC, RAID array, and
a series of hard drives. Which of the following would be the MOST
likely use of this workstation?
❍ A. NAS
❍ B. CAD/CAM workstation
❍ C. Gaming PC
❍ D. Thin client

A

C45. A system administrator has just built a new server with an eight core
CPU. When viewing information in Windows Task Manager, the utility
shows CPU performance for sixteen different processors. Which of the
following would be the MOST likely reason for this output?
❍ A. Task Manager displays CPU input and output separately
❍ B. The CPU supports hyper-threading
❍ C. The BIOS requires an upgrade to support the newer CPU
❍ D. The CPU is faulty

40
Q

C45. A system administrator has just built a new server with an eight core
CPU. When viewing information in Windows Task Manager, the utility
shows CPU performance for sixteen different processors. Which of the
following would be the MOST likely reason for this output?
❍ A. Task Manager displays CPU input and output separately
❍ B. The CPU supports hyper-threading
❍ C. The BIOS requires an upgrade to support the newer CPU
❍ D. The CPU is faulty

A

The Answer: B. The CPU supports hyper-threading
HTT (Hyper-threading Technology) provides additional processing
efficiency by treating a single CPU (Central Processing Unit) as two
separate processors. Although this does not provide twice the performance,
it can increase processing efficiency by fifteen to thirty percent.

41
Q

C46. What type of proprietary Apple connector can be plugged in face up or
face down?
❍ A. Lightning
❍ B. Thunderbolt
❍ C. FireWire
❍ D. USB-C

A

The Answer: A. Lightning
The Apple lightning connector is only found on Apple devices, and it
allows for a higher power output to charge larger phone and tablets. The
connector can also be plugged in either face up or face down.

42
Q

C47. Which of the following best describes elasticity in cloud computing?
❍ A. A cloud-based application framework is used to build
more complex apps
❍ B. The cloud operates in an internal virtualized data center
❍ C. All cloud storage is managed from a central pool
❍ D. The cloud resources can scale up as needed

A

The Answer: D. The cloud resources can scale up as needed
Rapid elasticity is a cloud computing characteristic that allows the scaling
up and down of cloud-based applications on an as-needed basis.

43
Q

C48. A network administrator has been asked to control network access to
destination websites based on the URL. Which of the following would
provide this functionality?
❍ A. QoS
❍ B. Whitelisting
❍ C. NAT
❍ D. MAC filtering

A

The Answer: B. Whitelisting
Whitelisting allows an administrator to limit all access through a device
unless the content has been previously approved and configured in the
device. This is a very restrictive security posture, but it does provide
extensive control of network traffic flows. In this example, the whitelists
are based on the URL (Uniform Resource Locator) of a website,
commonly referenced as the web site address.

44
Q

C49. Which of the following would be MOST commonly associated with
a KVM switch?
❍ A. DB-9
❍ B. 802.11
❍ C. VGA
❍ D. BNC

A

The Answer: C. VGA
VGA (Video Graphics Array) is a standard video format that’s often used
on KVM (Keyboard/Video/Mouse) switches. USB (Universal Serial Bus)
or PS/2 (Personal System/2) interfaces would be commonly connected to
the keyboard and mouse ports.

45
Q

C50. A user has reported that they can’t browse to Google’s search page at
https://www.google.com. The workstation IP address is 192.168.1.5, the
subnet mask is 255.255.255.0, the default gateway is 192.168.1.1, and
the domain name servers are 10.2.2.1 and 10.2.2.2. A technician can
successfully ping the local IP address, the default gateway, and Google’s
DNS server at 8.8.8.8. Which of the following is the most likely cause of
this issue?
❍ A. The Ethernet adapter’s duplex setting is incorrect
❍ B. The default gateway is faulty
❍ C. The Internet connection is down
❍ D. The DNS servers are faulty
❍ E. The client’s default gateway configuration is incorrect

A

The Answer: D. The DNS servers are faulty
The DNS (Domain Name System) servers are responsible for converting
a name (www.google.com) to an IP address. If the DNS servers are not
working, then an IP address for a device cannot be resolved and the
communications process can’t continue.

46
Q

C51. A user in the facilities department is having an issue printing their
complex blueprints to a network laser printer. When they pick up their
output, the top half of the blueprint is printed but the bottom half of the
page is completely blank. Which of these is the MOST likely cause of
this issue?
❍ A. Network is faulty
❍ B. Printer is out of memory
❍ C. The fuser is not operating
❍ D. Printer is out of toner

A

The Answer: B. Printer is out of memory
A laser printer must render an entire page in memory before starting the
printing process. If a complex image exhausts the available memory, only a
portion of the page will be printed.

47
Q

C52. A user is connecting their laptop to a docking station for the first time,
but is not able to see any video output. The USB keyboard and mouse
connected to the docking station appear to be working normally. Which
of the following should be the NEXT troubleshooting task?
❍ A. Use the secondary Fn display key
❍ B. Toggle airplane mode on the laptop
❍ C. Install an updated video driver
❍ D. Enable external video output in the laptop BIOS

A

The Answer: A. Use the secondary Fn display key
The Fn (Function) key on a laptop is used to control laptop features
without requiring additional keys or buttons. Most laptops will include
a Fn key that will enable the external video display and select the type of
video that will appear on the external screen.

48
Q

C53. Two computers in a test lab are used to transfer files to each other over a
wireless network, but the test lab does not have an access point. Which of
the following would best describe this connection?
❍ A. WPA2 mode
❍ B. Ad hoc mode
❍ C. SSID mode
❍ D. Infrastructure modev

A

The Answer: B. Ad hoc mode
Ad hoc mode configures a device to communicate directly to another
device using the wireless network adapter. With ad hoc mode, a central
access point is not required to communicate to another device.

49
Q

C54. A Windows computer is configured to obtain an IP address automatically.
Which of the following would occur if the automatic assignment process
was not working?
❍ A. The IP address would be set to 0.0.0.0
❍ B. A link-local address would be assigned
❍ C. The Ethernet adapter would be disabled
❍ D. The last known good IP address would be used

A

The Answer: B. A link-local address would be assigned
If a device is configured to obtain an IP address from a DHCP (Dynamic
Host Configuration Protocol) server and the DHCP server is not
available, an APIPA (Automatic Private IP Addressing) address, or linklocal address, would be self-assigned.

50
Q

C55. A web server administrator has received a notification that disk 1 in a
RAID 5 array has failed. Which of the following would be the BEST
next step to resolve this drive failure?
❍ A. Replace disk 1 and restore from backup
❍ B. Replace all drives and restore from backup
❍ C. Replace all drives and rebuild the array
❍ D. Replace disk 1 and rebuild the array

A

The Answer: D. Replace disk 1 and rebuild the array
A RAID 5 (Redundant Array of Independent Disks, level 5) array is
designed to maintain data availability in the event of a single drive failure.
In this example, it’s unlikely that the users even realized that one of the
drives on the array was suddenly unavailable, because the array would
continue to operate normally with all data intact. To resolve this issue, the
bad drive would need to be replaced, and the array would rebuild the data
on the new drive using the redundant data from other drives.

51
Q

C56. IoT devices can build connections between each other to increase the
overall network communication distance. Which of the following would
best describe this type of network?
❍ A. PAN
❍ B. LAN
❍ C. WMN
❍ D. MAN

A

The Answer: C. WMN
A WMN (Wireless Mesh Network) is commonly used by IoT (Internet
of Things) devices to extend the overall reach of the network. All devices
connect to each other to create a mesh “cloud” that can be used by all of
the IoT devices.

52
Q

C57. A user in the accounting department is reporting that all of the printed
pages from a networked laser printer are completely blank. Nothing
appears to be written on any of the printed pages. Which of the following
would be the MOST likely cause of this issue?
❍ A. Fuser is faulty
❍ B. Print drivers are incorrect
❍ C. Printer out of memory
❍ D. Toner cartridge is faulty

A

The Answer: D. Toner cartridge is faulty
If the toner cartridge is completely empty or is not properly providing
toner to the printer, then nothing will be printed on the final output.

53
Q

C58. A systems administrator has just installed a new server in a data center.
When pressing the power button, there’s no response from the server, no
lights appear on the front display, and no fans are spinning. Which of the
following would be the MOST likely reason for this issue?
❍ A. An operating system is not installed on the server
❍ B. The power supply switch is set to the wrong input voltage
❍ C. The BIOS needs to be upgraded
❍ D. The keyboard and mouse are not connected

A

The Answer: B. The power supply switch is set to the wrong input voltage
If the data center power provides 120 volts and the computer’s power
supply is set to 240 volts, the computer will not be able to start. Some
power supplies will attempt to start with the lower voltage while other
power supplies will not work at all. In either case, the computer is not
going to perform properly with the lower voltage and may be damaged by
the difference in expected voltage.

54
Q

C59. Which of the following services would automatically provide an IP
address to any device connected to the network?
❍ A. DNS
❍ B. Proxy
❍ C. IPS
❍ D. DHCP

A

The Answer: D. DHCP
DHCP (Dynamic Host Configuration Protocol) is used to automatically
assign IP addresses to network devices. A device configured to use DHCP
will be assigned an IP address without any intervention from the user or
network administrator.

55
Q

C60. A quality assurance team is planning to use a single workstation to
simultaneously test an application across multiple operating systems.
Which of the following components would be MOST important for
this workstation?
❍ A. Enhanced sound card
❍ B. Gigabit NIC
❍ C. Dual monitors
❍ D. Maximum RAM

A

The Answer: D. Maximum RAM
Running multiple operating systems simultaneously on a single system
will require extensive CPU and RAM usage.

56
Q

C61. A computer lab is purchasing supplies for their 3D printers. Which of the
following should be included on this order?
❍ A. Toner cartridge
❍ B. Ink ribbon
❍ C. Plastic filament
❍ D. Ink cartridge

A

The Answer: C. Plastic filament
3D printers melt plastic filament in layers to create a 3D object.

57
Q

C62. A network administrator has configured a system to operate in
infrastructure mode. Which of the following would BEST describe
this mode?
❍ A. The wireless network communicates through an access point
❍ B. The BIOS settings cannot be changed without an
administrator password
❍ C. No changes can be made to the operating system files
❍ D. All files shares are stored on a central NAS

A

The Answer: A. The wireless network communicates through
an access point
Infrastructure mode uses an access point to communicate with other
devices on the network. Ad hoc mode communicates directly to another
device without using an access point.

58
Q

C63. A server administrator is building a web server with three hard disk
drives. The storage for the server requires the fastest possible access and
redundancy is not a primary requirement. Which of the following would
be the BEST choice for this server?
❍ A. RAID 10
❍ B. RAID 1
❍ C. RAID 0
❍ D. RAID 5

A

The Answer: C. RAID 0
RAID (Redundant Array of Independent Disks) level 0 does not provide
any redundancy, but it will efficiently stripe data across multiple drives.
RAID 0 does not require the duplication of data or calculation of parity, so
it’s commonly considered the fastest access of the RAID levels.

59
Q

C64. A network engineer is troubleshooting the connection of a tablet to a
cellular provider’s network. Which of these would BEST describe this
network connection?
❍ A. Integrated Services Digital Network
❍ B. Long Term Evolution
❍ C. Media Access Control
❍ D. Near Field Communication

A

The Answer: B. Long Term Evolution
Long Term Evolution, or LTE, is a converged standard used by mobile
providers to provide high-speed communication over cellular frequencies.

60
Q

C65. A developer has requested a server for testing a new application. To
complete this request, the system administrator logs into his cloud
console and allocates a new server configuration. Which of the following
describes this process?
❍ A. Metered
❍ B. Resource pooling
❍ C. Measured
❍ D. On-demand

A

The Answer: D. On-demand
The characteristic of on-demand self-service is an important aspect of
cloud computing. With an on-demand process, system administrators can
instantly create, modify, or delete services. This provides the flexibility to
build an application infrastructure for any service at any time.

61
Q

C66. A user is complaining that their laptop keyboard is displaying numbers
when letter keys are pressed. When you look at the laptop, you confirm
that pressing some of the letters on the keyboard shows numbers on the
screen. What is the MOST likely cause of this problem?
❍ A. Windows has remapped the keyboard layout
❍ B. The secondary function key has enabled NumLock
❍ C. The Caps Lock key is enabled
❍ D. The laptop’s keyboard is faulty

A

C66. A user is complaining that their laptop keyboard is displaying numbers
when letter keys are pressed. When you look at the laptop, you confirm
that pressing some of the letters on the keyboard shows numbers on the
screen. What is the MOST likely cause of this problem?
❍ A. Windows has remapped the keyboard layout
❍ B. The secondary function key has enabled NumLock
❍ C. The Caps Lock key is enabled
❍ D. The laptop’s keyboard is faulty

62
Q

C67. Which of the following would be commonly used to connect a chip
reader to a point of sale terminal?
❍ A. TRS
❍ B. BNC
❍ C. VGA
❍ D. USB

A

The Answer: D. USB
USB (Universal Serial Bus) is a common interface to use for mouse,
keyboard, printers, and many other peripheral connections. The chip reader
used on a point of sale terminal commonly connects over this
USB interface.

63
Q

C68. A server administrator has recently upgraded the CPU in one of his
database servers, and he has also installed a new heat sink and a CPU fan.
Unfortunately, the computer is now powering down after ten minutes of
normal use. Which of the following is the MOST likely reason for
this issue?
❍ A. Insufficient thermal paste
❍ B. Overloaded power supply
❍ C. The OS is out of memory
❍ D. Incorrect BIOS configuration

A

The Answer: A. Insufficient thermal paste
If a computer runs for a number of minutes and suddenly shuts down,
then heat is probably the root cause of the issue. Since this system was just
upgraded and the cooling system was changed, the most likely reason for
this problem is related to the cooling of the CPU.

64
Q

C69. Which of the following technologies performs BEST when reading a
text-based document in direct sunlight?
❍ A. Tablet
❍ B. Smart phone
❍ C. e-Reader
❍ D. Augmented reality glasses

A

The Answer: C. e-Reader
The electronic ink or electronic paper used on e-Readers allows their
screens to be viewed easily in bright light.

65
Q

C70. The mouse on a desktop computer has stopped operating. Which of the
following would be the best NEXT troubleshooting step?
❍ A. Replace the mouse
❍ B. View Device Manager
❍ C. Reinstall the mouse driver
❍ D. Move the mouse to a different USB interface

A

The Answer: B. View Device Manager
The first step of the troubleshooting process is to identify the problem.
Before making any changes, it’s important to research the issue and gather
as much information as possible.

66
Q

C71. A network administrator is viewing the interface statistics on a WAN
router and has noticed that error rates are increasing. The administrator
has replaced the WAN cables, but the errors continue. Which of the
following tools should be used to BEST troubleshoot
this issue?
❍ A. Loopback plug
❍ B. Toner probe
❍ C. Multimeter
❍ D. Cable tester

A

The Answer: A. Loopback plug
A loopback plug is useful when running diagnostics on a device interface.
Data is sent out an interface, and the loopback plug redirects that data
back to the interface. By comparing the data sent and received, the
technician can determine if an interface may not be operating properly.

67
Q

C72. Which part of the laser printing process requires extensive use of
printer memory?
❍ A. Processing
❍ B. Fusing
❍ C. Transferring
❍ D. Exposing

A

The Answer: A. Processing
The processing phase is the first phase of the laser printing process. The
printer builds the entire page in memory before the rest of the printing
processes can continue.

68
Q

C73. An administrator is trying to print some customer letters on company
letterhead, but the multi-tray laser printer is printing everything on plain
paper. Which of the following is the MOST likely cause of this issue?
❍ A. Print spooler has crashed
❍ B. Printer hardware is faulty
❍ C. Tray selection in the printer driver is incorrect
❍ D. Printer does not support printing on letterhead

A

The Answer: C. Tray selection in the printer driver is incorrect
Many organizations will use a multi-tray printer with plain paper in one
tray and letterhead in the other. The printer driver allows the user to
configure and select certain printer functions, including the print tray that
will be used during the printing process.

69
Q

C74. Walter, a hardware technician, has been asked to purchase a system that
will be used as a database server. One of the specifications for the server
requires the system to detect and correct memory errors during operation.
Which of the following would be the BEST option for this project?
❍ A. Parity memory
❍ B. Single channel
❍ C. ECC
❍ D. SO-DIMM

A

The Answer: C. ECC
ECC (Error Correcting Code) memory is designed to both identify
memory errors and correct them if possible. It’s common to see ECC
RAM (Random Access Memory) used in servers to minimize any
potential downtime.

70
Q

C75. A system administrator is replacing a cracked LCD display on a
Windows laptop. Which of the following would be the MOST important
component to test after this replacement?
❍ A. Trackpad
❍ B. Wireless network
❍ C. USB devices
❍ D. Primary storage drive

A

The Answer: B. Wireless network
The antenna wires of the 802.11 wireless and Bluetooth adapters
commonly wrap around the laptop display for the best possible height.
When replacing the display, it’s important to make sure that the wires are
properly installed and have not detached from the antenna connectors on
the wireless adapter or motherboard.

71
Q

C76. Which of the following would be MOST associated with M.2?
❍ A. HDD
❍ B. Hybrid
❍ C. RAID
❍ D. SSD

A

The Answer: D. SSD
SSDs (Solid State Drives) are storage devices that use non-volatile
memory and have no moving parts. The M.2 interface is a small form
factor interface that allows for high-throughput storage in a smaller
footprint than a 2.5-inch storage drive.

72
Q

C77. A user in the accounting department is reporting that her smartwatch
is not synchronizing with her mobile phone. The phone is powered on
and unlocked, but the phone does not show the smartwatch in a list of
available devices. Which of the following would MOST likely solve this
issue?
❍ A. Enable NFC on the mobile phone
❍ B. Disable Wi-Fi on the mobile phone
❍ C. Enable Bluetooth on the mobile phone
❍ D. Restart the phone and smartwatch

A

The Answer: C. Enable Bluetooth on the mobile phone
The PAN (Personal Area Network) used for connectivity between local
devices is Bluetooth, so enabling Bluetooth on the phone should allow the
watch and phone to communicate to each other.

73
Q

C78. A computer used for testing high-resolution gaming displays has a highend video adapter and DisplayPort video connection. The computer works
properly for word processing and spreadsheets, but it powers down after
only a few minutes of graphics testing. Which of the following would be
the MOST likely reason for this issue?
❍ A. The storage drive is not fast enough for the testing application
❍ B. The CPU fan is faulty
❍ C. The video display is not properly connected
❍ D. One of the memory modules is faulty

A

The Answer: B. The CPU fan is faulty
If a system powers off after some intense CPU (Central Processing Unit)
utilization, then the issue is most likely associated with heat or power.
Most computers have many different temperature sensors that will
recognize when the system gets too hot, and they will automatically power
down to prevent damaging the CPU, memory, and other hardware.

74
Q

C79. A network administrator has created a configuration that provides a
server with the same IP address each time the server is started. Which of
the following would BEST describe this configuration?
❍ A. Link-local address
❍ B. IP reservation
❍ C. Default gateway
❍ D. APIPA

A

The Answer: B. IP reservation
An IP (Internet Protocol) reservation is usually configured on a DHCP
(Dynamic Host Configuration Protocol) server to ensure that specific
devices always receive the same IP address. This is commonly done to
ensure that important network resources are always available using the
same IP address.

75
Q

C80. Which of the following BEST describes a hypervisor?
❍ A. Manages the resources required for virtualization
❍ B. Increases the overall CPU efficiency of a computer
❍ C. Improves the throughput of network communication
❍ D. Prevents malware from executing in secure areas of memory
❍ E. Caches CPU transactions to provide an overall faster response time

A

The Answer: A. Manages the resources required for virtualization
A hypervisor, or virtual machine manager, is the software that manages
the connection between the physical world and the virtual machine. The
hypervisor is commonly associated with the management of the CPU
(Central Processing Unit), memory, networking, and security on the virtual
machines.

76
Q

C81. A network technician is installing a new copper gigabit Ethernet
connection, but when they plug in the network cable the status light
indicators are dark. Which of the following would be the MOST likely
status of the network connection?
❍ A. The DHCP server has not assigned an IP address
❍ B. There is no signal on the Ethernet cable
❍ C. The Ethernet link is running at 100 megabits per second
instead of 1 gigabit per second
❍ D. The primary DNS server is not responding

A

The Answer: B. There is no signal on the Ethernet cable
A least one light on the Ethernet adapter is commonly associated with
the link status. The link light will turn on if a signal is identified on the
Ethernet cable. Most Ethernet adapters will have lights to indicate the
status of an Ethernet signal and the speed of the link.

77
Q

C82. A finance manager is printing a contract that is designed to be printed
on both sides of the page, but the printer is only providing output on
one side of the paper. Which of the following options would resolve this
issue?
❍ A. Collate
❍ B. Caching
❍ C. Orientation
❍ D. Duplex

A

The Answer: D. Duplex
The duplex setting on a printer enables printing on both sides of the page
without requiring a person to manually flip the pages over.

78
Q

C83. A technician is troubleshooting a mobile phone that turns off after
about an hour of normal use. Before powering off, the phone displays
the message, “High temperature detected.” The phone is used inside the
building at room temperature, and is not used in direct sunlight. Which
of the following would be the MOST likely reason for this issue?
❍ A. An app is using a large amount of CPU
❍ B. The Wi-Fi network is overloaded
❍ C. The battery has low voltage
❍ D. The mobile phone has an invalid certificate

A

The Answer: A. An app is using a large amount of CPU
Electronic devices generate a lot of heat, and the amount of heat from a
CPU increases dramatically as it is used. Although most mobile devices
will dissipate the heat using passive cooling, it’s still possible to overheat
the device in certain circumstances.

79
Q

C84. The help desk has received a ticket that a desktop computer is reporting
slow performance. The hard drive access LEDs are continuously lit, and
it takes sixty seconds to load a file that previously took five seconds.
The CPU and memory utilization statistics show minimal resource use.
Which of the following would be the BEST next step?
❍ A. Upgrade the RAM
❍ B. Replace the hard drive
❍ C. Upgrade the BIOS
❍ D. Boot to Safe Mode
❍ E. Upgrade the power supply

A

The Answer: B. Replace the hard drive
Slow file access and a low amount of memory and CPU utilization
indicates a problem with the hard drive. Performing a backup and
replacing the drive should return the system to normal operation.

80
Q

C85. A user in the marketing department was using their computer to send
some email messages. The computer made an unexpected loud pop
and immediately powered down. The computer would not respond to
additional attempts to power it back on. Which of the following would be
the MOST likely cause of this issue?
❍ A. Incorrect video refresh rate
❍ B. Faulty capacitor
❍ C. Incomplete software update
❍ D. Bad memory module

A

The Answer: B. Faulty capacitor
Not all capacitors pop when they fail, but often a loud pop inside of a
computer is related to a blown capacitor. The second symptom of the
immediate powering off of the system also helps make the case that a
capacitor is to blame.

81
Q

C86. A manager in the shipping department needs to connect their laptop to
wireless portable speakers while in the office. Which of these should be
configured on their laptop?
❍ A. Tethering
❍ B. Bluetooth
❍ C. NFC
❍ D. IR

A

The Answer: B. Bluetooth
Most external portable speakers use Bluetooth to receive audio signals
from a mobile device. Bluetooth has the best fit for connectivity options,
distance requirements, and bandwidth for sending audio data.

82
Q

C87. A technician has two hard disk drives that need to be configured
redundantly, and all information should be duplicated across physical
drives. Which of the following should be configured?
❍ A. RAID 5
❍ B. RAID 1
❍ C. Dynamic disks
❍ D. RAID 0

A

The Answer: B. RAID 1
The RAID 1 (Redundant Array of Independent Disks) array keeps an
exact duplicate of data across multiple drives. If one drive fails, the other
drive containing the duplicated data continues to provide access to the
data.

83
Q

C88. A system administrator has connected a desktop computer to a new
LCD monitor. After connecting the monitor, all of the desktop icons and
windows appear oversized and larger than usual. Which of the following
would be the BEST way to correct this issue?
❍ A. Modify the display resolution
❍ B. Use a different LCD display
❍ C. Replace the monitor cable
❍ D. Restart the desktop computer

A

The Answer: A. Modify the display resolution
The display resolution determines how many horizontal and vertical pixels
are used when displaying information on a screen. If the resolution is set
relatively low, then the screen information will appear larger than a higher
resolution. To correct this oversized view, the system administrator will
need to configure a higher resolution setting on the desktop computer.

84
Q

C89. A company is developing a product that will monitor a user’s heart rate
and sleep patterns. Which category BEST fits this type of product?
❍ A. Augmented reality
❍ B. Tablet
❍ C. Smart phone
❍ D. Wearable

A

The Answer: D. Wearable
Wearable products are designed to be worn on the body and can
constantly monitor health information and other nearby sensors. Fitness
monitors are a common wearable technology.

85
Q

C90. A system administrator is installing a new LCD projector in the company
conference room. Which of the following would MOST likely be used
with this projector?
❍ A. Lightning
❍ B. UTP
❍ C. Coaxial
❍ D. HDMI

A

The Answer: D. HDMI
HDMI (High-Definition Multimedia Interface) is a common interface
for transmitting audio and video to televisions, displays, and projectors.

Professor Messer A+ 1001 (3 decks)

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