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CompTIA A+_ > Chapter 5 Hardware and Network Troubleshooting MC > Flashcards

Chapter 5 Hardware and Network Troubleshooting MC Flashcards

1
Q

Which of the following is not one of the six steps of the CompTIA troubleshooting theory?

Establish a theory of probable cause.

Check all cables and link lights.

Document findings, actions, and outcomes.

Test the theory to determine the cause

A

Check all cables and link lights.

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2
Q

At which step in the troubleshooting methodology might system logs be most
helpful to a technician?

Step 1

Step 3

Step 5

Step 6

A

Step 1

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3
Q

Which is not a system error commonly identified by beep codes?

Memory

Processor or motherboard

Video

Overclocking

A

Overclocking

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4
Q

When a computer boots and then displays the incorrect time and/or date, what
are two possible causes? (Choose two.)

The CPU is overclocked.

The CMOS chip is bad.

The battery is depleted.

The BIOS license has expired

A

The CMOS chip is bad.

The battery is depleted.

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5
Q

You touch the power supply inside the computer, and it is too hot to hold.
Before removing the cover at the workstation, you observed that the user’s cubicle is more cluttered than most. You observed the following four issues. Which
two of them may be responsible for the hot power supply? (Choose two.)

Drinks and food are spread around and left open on the tower next to
the desk.

A sweater is hanging down from a hook behind the tower.

Cables are pulled tight from repositioning the monitor.

Crumbs are on the floor and mixing with dust bunnies.

A

A sweater is hanging down from a hook behind the tower.

Crumbs are on the floor and mixing with dust bunnies.

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6
Q

Which two of the following might a BSOD indicate? (Choose two.)

Network cables not properly connected during boot

Registry errors

OS license expired

Defective hardware

A

Registry errors

Defective hardware

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7
Q

What can be done to isolate the cause of a BSOD? (Choose two.)

Wait 20 seconds and try again.

Remove a newly added component.

Note the error code and research it on line.

Unplug the power for one minute.

A

Remove a newly added component.

Note the error code and research it on line.

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8
Q

You have a client running Microsoft Word on macOS. When he tried to print,
a spinning pin wheel stopped everything. Choose a likely cause and a likely
quick remedy from the following options.

Caused by printer failure; reboot printer

Microsoft Word out of date; reboot and update version

RAM not available to process application demand; force-quit the application and reopen after closing unused applications

System crash; unplug and remove battery for two minutes to allow data
to reset

A

RAM not available to process application demand; force-quit the application and reopen after closing unused applications

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9
Q

Which tool in an IT professional’s toolkit can test the DC voltage inside a
computer and the AC voltage of the outlet?

Multimeter

Loopback plugs

Power supply tester

POST card/USB

A

Multimeter

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10
Q

If you have determined that you need to upgrade a PC by replacing a SATA
HDD with an SSD, which form factor is not a feasible replacement?

mSATA SSD

SATA HDD

PCIe card

m.2 SSD

A

m.2 SSD

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11
Q

Which of the following is not monitored by S.M.A.R.T.?

Slow spin-up

Drive temperature

Printer retry errors

Bad sectors

A

Printer retry errors

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12
Q

Which command can be used to find errors on a hard drive.?

DSKERR

DISKPART

CHKDSK

ERRDSK

A

CHKDSK

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13
Q

You are working on a hard drive that is nearly full, and you suspect files are
stored in fragments around the hard drive. Which one of the following can help
you determine whether defragmentation is a plausible solution for this client?

Use the Disk Storage Update tool.

Run DEFRAG at the command prompt.

Run CHKDSK.

Click the Analyze button in the disk optimization window.

A

Click the Analyze button in the disk optimization window.

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14
Q

You are asked to assist with a projector in a conference room where the presenter is having trouble getting the computer image to show on the screen.
Which of the following is not a commonly known issue with projection?

Overheated device

Screen set too far from projector

Lens cap not removed

Source setting on projector

A

Screen set too far from projector

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15
Q

Which is an example of an IPv4 APIPA/link local address?

  1. 168.15.1
  2. 1.15.6
  3. 254.3.3
  4. 16.53.1
A

169.254.3.3

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16
Q

If a printer has a static address that happens to be in the DHCP range of the
network, what is a potential network problem?

No problem as the router can handle both static and DHCP addresses

DHCP being disabled and router handling only static IP addresses

IP address conflict

Intermittent network connectivity during print jobs

A

IP address conflict

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17
Q

What can be the result of EMI and/or RFI on a network segment?
(Choose two.)

Slow file transfer speeds

IP address conflicts

Intermittent connectivity

Slowing fiber optic transmission

A

Slow file transfer speeds

Intermittent connectivity

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18
Q

What is the minimum amperage required to charge a smartphone?

100mA

1A

5A

1000mA

A

5A

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19
Q

If a device is plugged into an adapter and has no power, which is a possible step to take to alleviate the problem?

Ensure that the adapter is set to the proper DC voltage.

Make sure the AC outlet is working.

Use a multimeter to test DC voltage from the adapter.

All of these steps are correct

A

All of these steps are correct

20
Q

You have been called to check on a printer in an office. You find a paper jam
and fix it. Where do you look to resume the printing process and print jobs
that were unable to print?

The sending workstation’s RAM

The print queue

The printer’s hard drive.

The printer’s virtual memory

A

The print queue

21
Q

Your system has begun shutting down suddenly and unexpectedly. Which of
the following best describes how to determine whether the cause of these shutdowns is due to the CPU overheating?

Check the CPU temperature in the Device Manager.

Check the CPU temperature in the System Properties.

Check the CPU temperature in Computer Management.

Check the CPU temperature in the system BIOS/UEFI firmware

A

Check the CPU temperature in the system BIOS/UEFI firmware

22
Q

Which of the following best describes the usual cause of a checksum error?

A failing CMOS battery

A corrupt BIOS or UEFI

An error within the system’s arithmetic calculator

Overheating due to overclocking

A

A failing CMOS battery

23
Q

Which of the following is usually checked by POST? (Choose all that apply.)

Memory

Keyboard

Mouse

Hard drives

A

Memory

Keyboard

Hard drives

24
Q

When the date and time on your computer are running slowly and losing time,
which of the following statements best describes the most likely cause and the
most effective course of action?

There is a fault in the BIOS settings, and you should flash the BIOS.

The CPU is running slowly, and you should check the CPU and its fan
to see if dust is clogging it and slowing it down.

At least one of the memory modules may be faulty, and you should check
the memory information in the BIOS and replace any failing modules.

The CMOS battery is failing, and you should replace the battery.

A

The CMOS battery is failing, and you should replace the battery.

25
Q

If your system is experiencing frequent STOP errors and is automatically
rebooting each time, where would you go to change the configuration setting
to stop the automatic reboot process?

System Properties, Advanced tab, Startup and Recovery

Drive Properties, Tools tab

Administrative Tools, Disk Management

BIOS, Boot tab, Automatic Reboot

A

System Properties, Advanced tab, Startup and Recovery

26
Q

Which voltage is used by most personal computers in North America?

115V

190V

230V

400V

A

115V

27
Q

Which of the following tools is used to test AC or DC voltage, continuity,
resistance, and amperage?

Loopback plug

PING

Multimeter

Tone generator

A

Multimeter

28
Q

Which of the following voltage levels should be produced by a healthy power supply? (Choose all that apply.)

+3.3

−3.3

+5.0

−5.0

+8.3

−8.3

+12.0

−12.0

A

+3.3

+5.0

−5.0

+12.0

−12.0

29
Q

You are called to an employee workstation, where it is reported that the
network connectivity has failed. At some point in the process, you decide to
replace the workstation Ethernet cable with one in your bag that you know to
be good. Which step does this demonstrate in the best practice methodology
to resolve problems?

Identify the problem.

Establish a theory of probable cause.

Test the theory to determine the cause.

Establish a plan of action

A

Test the theory to determine the cause.

30
Q

You have received a support call from an employee whose mouse does not work on booting. When you ask the user if the monitor is on and if the keyboard is also disabled, which step does this demonstrate in the best practice methodology to resolve problems?

Identify the problem.

Establish a theory of probable cause.

Test the theory to determine the cause.

Establish a plan of action.

A

Identify the problem.

31
Q

Which of the following statements best describes how to change the boot
sequence?

Edit the BIOS and save the changes in CMOS.

Change the jumper settings on the SATA drive to make it the bootable
drive.

Reconfigure settings for the RAID array to make a RAID drive the bootable drive.

Use the Disk Management utility in Administrative Tools

A

Edit the BIOS and save the changes in CMOS.

32
Q

S.M.A.R.T. detects and reports errors for which of the following?

CPUs

DDR memory

SATA and PATA hard drives

Expansion cards

A

SATA and PATA hard drives

33
Q

You have been asked to replace a switch in a wiring closet with an upgraded
switch. Unexpectedly, it takes you about two hours using a tone generator to
determine where the cables map to in the old switch before you can uninstall
it. Which step in the best practice methodology to resolve problems is missing
from this scenario and may have saved two hours?

The first

The third

The fifth

The last

A

The last

34
Q

Which command can be issued at a command prompt to generate output in the following format?
server: fbks.alaska.edu

nslookup fbks.alaska.edu

ping 181.27.135.135

nslookup 181.27.135.135

tracert 181.27.135.135

A

nslookup 181.27.135.135

35
Q

When booting your system in Safe mode, which of the following statements
best describes how the display will load?

The display will load in VGA mode.

The display will load using the last known good configuration.

The display will load using the resolution selected when entering Safe
mode.

The display will degauss before entering Safe mode.

A

The display will load in VGA mode.

36
Q

A flickering image on an LCD display might be caused by the failure of which
components? (Choose two.)

Backlight

Cathode ray tube

Reflector

Inverter

A

Backlight

Inverter

37
Q

Burn-in refers to which of the following?

The process of recording a CD or DVD

The process of preparing a hard drive for formatting for a clean installation

A persistent ghost image on the display screen

The damaged areas in a plasma display

A

A persistent ghost image on the display screen

38
Q

Your client reports that computers on the network cannot connect to the
Internet but can connect to each other. You determine that each of the computers affected has been assigned an APIPA address. At Step 2 of the best practice methodology to resolve problems, where would you look next to solve the
problem?

DNS

DHCP

Proxy

Router

A

DHCP

39
Q

Which step of the best practice methodology to resolve problems is out of
order?

Establish a theory of probable cause.

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

Test the theory to determine the cause.

Verify full system functionality

A

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

40
Q

Which of the following does not apply to the first step of the best practice
methodology to resolve problems?

Inquiring regarding environmental changes

Inquiring regarding infrastructure changes

Performing backups

Documenting outcomes

A

Documenting outcomes

41
Q

When your tablet or smartphone does not get a clear cellular signal, which of
the following steps could improve the signal? (Choose two.)

Turn off WiFi.

Change the angle of your screen.

Reset your cellular settings to a faster 802.11 specification.

Use the slider switch on an iOS device to fine-tune reception.

A

Turn off WiFi.

Change the angle of your screen.

42
Q

Which of the following steps could help increase the battery life on your
mobile devices? (Choose two.)

Don’t overcharge.

On iOS, turn on the background app refresh.

Use the iOS slider switch to shut down weekly.

Wait until almost out of power before recharging a device

A

Use the iOS slider switch to shut down weekly.

43
Q

Vertical streaks extending down each page printed by a laser printer usually
indicate which of the following problems?

Low toner

A dirty print ribbon

Damaged ink nozzles

Damage to the imaging drum

A

Damage to the imaging drum

44
Q

Smudged print from an inkjet printer could be caused by which of the
following?

Dirty printheads or rollers

Failure of the fuser to reach a high enough temperature

Photosensitive drum not being properly charged

Toner cartridge needing to be replaced

A

Dirty printheads or rollers

45
Q

If toner can be brushed off the page after printing, which component of a laser
printer is malfunctioning?

Print drum

Fuser

Paper feed rollers

Corona

A

Fuser

46
Q

If a document requires the maximum amount of memory that is available to a laser printer, the printer might attempt to compress the document. Which of
the following statements best describes the result of this compression on the
final print page?

Some text could be lost.

The printed text may be cloudy.

The print process will be slower.

Some pictures could be deleted.

A

The print process will be slower.

47
Q

Which of the following print tools is used to manage and maintain print jobs?

Print spooler

Fuser

Printheads

XPS Document Writer

A

Print spooler

CompTIA A+_ (28 decks)

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