1101: Chap 5 - Hardware and Network troubleshooting Flashcards by Nicholas McCarthy

1101-Chap5-8: A user has brought their laptop to you because the screen is intermittenly flickering. Which display component is most likely causing this?

Backlight
LCD
Screen
Inverter

Inverter

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1101-Chap5-12: A friend who plays video games has asked you how they can fix tearing on their display. What will you tell them?

They need a new display
The refresh rate is set too low
The screen’s refresh rate is set too high
Its a software defect

The refresh rate is set too low

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POST

Power On Self Test : series of system checks performed by a BIOS when a system turns on

Successful POST gives one beep, usually

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1101-Chap5-17: You are troubleshooting a Mac running MacOS. Intermittently, the cursor will completely lock up and display a rotating pinwheel instead of the mouse cursor. It happens when different applications are running. What is most likely causing the problem?

CPU
RAM
Motherboard
Faulty Application

RAM

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1101-Chap5-19: You are troubleshooting a desktop computer that is prone to unexpected shutdowns. They seem to happen randomly, sometimes shortly after the computer starts, other times after several minutes. The user reports that no error messages appear before the computer shuts down. Which two things are most likely the cause of this type of problem? (Choose two)

Failing hard drive
Bad RAM
BIOS/UEFI Misconfiguration
Improperly seated chips

Bad RAM

Improperly seated chips

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1101-Chap5-27: A user reports that their laptop battery does not charge when the laptop is plugged into an AC outlet. What is the best first resolution to try?

Replace the battery
Replace the AC adapter
Remove and reinsert the battery
Drain the battery completely and recharge it

Remove and reinsert the battery

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1101-Chap5-28: A techician has determined that they need to replace a motherboard in a laptop. Which o fthe following procedures should be followed? (Choose two)

Never use a power screwdriver with a laptop
Document and label the screw locations
Refer to the manufacturer’s instructions
Remove the keyboard before removing the motherboard

Document and label the screw locations
Refer to the manufacturer’s instructions

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POST card

external device to troubleshoot mobo booting

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1101-Chap5-30: You are troubleshooting a computer that has been randomly rebooting and now it refuses to boot properly. Upon boot you receive one long beep and three short beeps with no video on the screen. You don’t have a POST diagnostic card that will work with this mobo. What tool should you use to troubleshoot the situation?

Mobo documentation
Power Supply tester
Loopback plug
Mulitmeter

Mobo documentation

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1101-Chap5-35: You power on a desktop computer, and you hear the fan spinning. However, you do not see any indicator lights or get a POST beep. Which component is likely causing the problem?

CPU
RAM
PSU
HDD

PSU

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1101-Chap5-39: Your office uses an impact printer and multipart carbonless forms. The office manager noticed that the bottom copies of the forms are readable, but the top copy if too light to be read. What needs to be replaced?

Toner cartridge
Printhead
Ink ribbon
Ribbon advance motor

Ink ribbon

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1101-Chap5-44: You’re having lunch with a friend. They are charging their phone and you notice that the phone is swelling. What action should be taken first?

Nothing, its fine
Disconnect the power and turn it off
Turn it off, and remove the battery if possible
Replace the battery

Disconnect the power and turn it off

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1101-Chap5-45: You have a laptop that the user says won’t charge up since they dropped it on the floor while it was plugged in. It hit on the side with the charger, but it was running fine until the battery ran out. What might be the most expediate solution?

Replace the motherboard
Replace the power connector
Solder the power jack back on to the motherboard
Solder the power cord back on to the motherboard

Solder the power jack back on to the motherboard

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1101-Chap5-46: A user complains that their laptop charges only when they wiggle the connector and get it at a certain angle. What will you most likely need to do?

Solder the port back in place
Replace the port
Replace the charhger
This can’t be fixed

Replace the port

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1101-Chap5-48: Your phone is not charging properly. When you look inside the port you can see corrosion on the connectors. What should you do?

Replace the phone
Replace the port
Use lint free swabs with a small amount of isopropyl alcohol to gentle clean the connection
Use a toothbrush dampended with isopropyl alcohol to brush the connector clean

Use lint free swabs with a small amount of isopropyl alcohol to gentle clean the connection

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Toothbrush

CompTIA says to NEVER use this to clean a phone’s charing port.

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Port flapping

aka link flapping. a condition where a communications link alternates between up and down states

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EEE

Energy Efficient Ethernet

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1101-Chap5-56: Users have been complaining that a network resource has intermittent connectivity. You’ve identified the problem; the switch is port flapping. The connected device is not EEE compliant, and users need it to be available. What should you do?

Configure link flap prevention settings
Replace the offending device
Disable EEE on the switch
Disable EEE on the device

Disable EEE on the switch

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1101-Chap5-57: A user calls you about a printer not working. The user is standing next to the printer, while you are in the next building. What can the user do to be helpfu in your diagnosing the problem?

Turn the printer off and on
Read the printer error code
Remove the jammed papaer
Check the network link light

Read the printer error code

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1101-Chap5-59: A workstation is sending print jobs directly to a printer that has a stapler as a finishing option. When they retrieve the print job, the document is not stapled. Which of the following could be the problem? (Choose three)

The stapler is empty
The staples are in backward
A different printer driver is needed
The stapler is not enabled

The stapler is empty

A different printer driver is needed

The stapler is not enabled

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1101-Chap5-62: A user reports that their smartphone is always overheating and constantly locks up. What should you advise them to do?

Replace the battery
Open the power app and set the phone to operate on low voltage setting
Turn off the phone and let it cool down
Replace the phone

Replace the phone

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1101-Chap5-67: You’re troubleshooting a computer that won’t boot properly. When the computer is turned on, the power supply fan spins, but the computer will not POST. When you remove the cover, you notice a swollen capacitor on the mobo. What should you do?

Replace the power supply
Replace the capacitor
Replace the motherboard
Discharge the capacitor

Replace the motherboard

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CompTIA Troubleshooting (Best Practice) Methodology to resolve problems

1- Identify the Problem
2- Establish a theory of probably cause (question the obvious)
3- Test the theory to determine the cause
4- Establish a plan of action to resolve the problem and implement the solution
5- Verify full system functionality, and if applicible, implement preventive measures
6- Document the findings, actions and outcomes

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1101-Chap5-72: The corporate finance team is getting ready for a presentation in the conference room in about an hour. Thye frantically called you because the image the projector is putting out on the screen is fuzzy. Which of the following is least likely the cause? The projector's lens needs to be cleaned The projector's lens needs to be adjusted The constrast setting is too high The PC's resolution is too high for the projector

The constrast setting is too high

1101-Chap5-75: A user is complaining that their mouse drifts away on its own while they are working on their company laptop. They have changed the batteries, gotten a new mouse pad, and cleaned the mouse's sensor. What should they try next to resolve the issue? (Choose two) Remove and reinstall the mouse driver Get a new mouse Plug the mouse into a different USB port Disable the mouse in the control panel

Remove and reinstall the mouse driver Plug the mouse into a different USB port

1101-Chap5-84: Laser printer users are complaining that their print jobs aren't printing. They're using an accounting package that won't let them reprint the reports they have printed. When you look at the print queue you see their print jobs are just sitting there. What will you do? (Choose two) Ensure the printer is turned on Ensure there is paper in the printer Stop and restart the print server service Delete and reinstall the printer in the OS

Ensure the printer is turned on Ensure there is paper in the printer

1101-Chap5-87: A user has a hard drive that needs to be replaced. Before you establish a plan of action to resolve the problem, and implement the solution, what should you do? Verify full system functionality Refer to the corporate policy for handling hard drive data Document the findings, actions and outcomes None of these

Refer to the corporate policy for handling hard drive data

1101-Chap5-89: Your home computer was working fine yesterday but today you get an error stating bootable device not found. Which of the following is most likely? The hard drive has failed The OS was deleted The POST is faulty A USB drive is in the port

A USB drive is in the port

1101-Chap5-91: Users on your network are expericening VoIP calls where they only hear every other word. What is this a symptom of? Jitter High bandwidth Packet loss Low latency

Packet loss

1101-Chap5-98: You are troubleshooting a Win10 computer that has crashed. It displays a BSoD with the error: "UNEXPECTED_KERNEL_MODE_TRAP" on it. Which component is most likely caused this problem? RAM CPU SSD PSU

RAM

1101-Chap5-106: While plugging in a VGA display, a user bent some of the pins on the connector. You attempted to straighten them, but two broke off. If you use this display, what will most likely happen? It will work properly It will display incorrect colors It will display a distorted image It will produce dim or flickering images

It will display incorrect colors

MacOS computer -> beeps every 5 seconds during startup

RAM issue

1101-Chap5-109: Your child has a new 3D printer. They've been having fun printing all sorts of things, but today it's making a grinding noise and not moving. What can you do quickly that might fix it? (Choose two) Ensure that the cable moving the printhead moves freely Check for blockages and debris Replace the printer's ink ribbon Replace the printhead

Ensure that the cable moving the printhead moves freely Check for blockages and debris

1101-Chap5-115: You have a Xerox color multifunction printer that is making a grinding noise. What is the first thing you'll try to fix the problem? Replace the toner cartridge Clean the printhead lenses Perform a software reset Gently shake the toner cartridge

Perform a software reset

1101-Chap5-119: Lately print jobs have been pulling multiple sheets from the tray instead of just one. You've verified that the paper is correct weight and that the tray is properly adjusted, and you've fanned the paper's edges, but it still happens. What component will you likely need to replace in the printer? Fusing assembly Paper tray Pickup roller or separation pad Primary coronoa

Pickup roller or separation pad

1101-Chap5-120: People are complaining that the output from the company's multifunction device has little spots all over it, and its been getting gradually worse. What will you do to correct this? (choose two) Replace the HVPS Ensure the correct paper is being used Thoroughly clean the printer Blow debris out of the printer with canned air

Ensure the correct paper is being used Thoroughly clean the printer

1101-Chap5-125: The day after an electrical thunderstorm, you are troubleshooting a computer. After you power it up, it flashes information briefly on the screen and then reboots. It continuously reboots itself after this. Which component sare most likely to cause the problem? (Choose two) Hard drive Power Supply Mobo CPU

Mobo CPU

1101-Chap5-128: During a meeting, the manager mentions the projector has been problematic since the start of the meeting. They tried running the projector from a few laptops with no success. Multiple pop-ups were occuiring, but is unknown what the pop-up windows reported. What might be your next step? Open the log for information on failed jobs Check the light source for failure Verify that cables were attached Allow the projector to cool down and try again

Open the log for information on failed jobs

1101-Chap5-129: A user reports the wireless internet connection will randomly shut down in the afternoon. You check the Internet router by the window to find it still has power. What is the most likely cause of this problem? Network overloaded Printer queue full Wireless router overheating Workstation requires patching

Wireless router overheating

1101-Chap5-136: You are troubleshooting a desktop computer that is exhibiting erratic behavior. As part of establishing a theory of probably cause, what next step should you take, as part of the best practice methology to resolve problems? Question the user and identify changesd to the computer Determine next steps to resolve the problem Establish a plan of action to resolve the problem If necessary, conduct external or internal research based on symptoms

If necessary, conduct external or internal research based on symptoms

1101-Chap5-140: You are troubleshooting a Windows desktop computer that appears to be having driver issues. According to troubleshooting methodology, when is the appropriate time to perform backups of the system? After verifying full system functionality and implementing preventive measures Before making changes After documenting findings, actions and outcomes Before identifying the problem

Before making changes Making backups are part of step 1: Identifying the problem

1101-Chap5-141: The laser printer in your office is about 8 years old. Recently, when you print, you occassionally get "low memory" error messages. What should you do to fix the problem? Stop and restart the print spooler Implement printing priorities for the most important users Upgrade the printer's memory Upgrade the printer's hard drive

Upgrade the printer's memory

1101-Chap5-150: Your friend's home theater projector is turning off unexpectedly. Which of the following is not a possible cause? The power cable is loose The unit is overheating The filter needs cleaning The HDMI cable is loose

The HDMI cable is loose

1101-Chap5-151: Over time, the Hard Drive performance of your computer has gotten slower. A quick check of Performance Monitor shows that your disk read/writes are taking more time as compared to the baseline. What should you do to resolve the issue? Format the hard drive and restore data Enable write caching on the drive Delete the partition, create new one and restore the data Run chkdsk

Enable write caching on the drive

1101-Chap5-152: Your server's drive read/write times are a bottleneck in your system and you're concerned about downtime in the event of a drive failure. Which of the following will improve performance and fault tolerance? Replace the HDD with an SDD Install RAID 0 Install RAID 1 Install RAID 5

Install RAID 5

1101-Chap5-163: A user reports that their LCD display is flickering constantly. What is the easiest course of action to resolve this problem? Replace the video card Replace the display Remove external interference such as fans or motors Degauss the display

Replace the display

1101-Chap5-169: Your iPhone 11 has appeared to lock up. The touchscreen is unresponsive. You press and hold a volume button and the side button but it does not turn off. What should the next step be? Press and release the volume up button, press and release the volume down button, and press and hold the side button Use a paper clip to press the recessed reset button on the bottom of the phone to reset the phone Hold the side button and the up and down volume buttons simultaneously for 10 second and the phone will reset Get a new phone

Press and release the volume up button, press and release the volume down button, and press and hold the side button

1101-Chap5-170: You frequently need to carry your laptop around the building an you troubleshoot computert issues. In several places, you notice that the WiFi connection drops completely. What is the most likely cause of this problem? You are walking too fast for the Wifi to stay connected Low RF Signal Oversaturated WAP Failing WiFi Antenna in the laptop

Low RF Signal

1101-Chap5-173: You have an Android phone and its running very slowly. The apps aren't working as fast as they used to, but you have plenty of free memory. You have rebooted the phone several times and its still slow. You have tried running only one app at a time and its still slow regardless of what app you're running. What should you do next? Hold the power button and the Home button simutaneously for 10 second and the phone will reset Back up the phone, then reset it to factory specifications Uninstall and reinstall all apps Get a new phone

Back up the phone, then reset it to factory specifications

1101-Chap5-174: The laser printer you are using has started producing all-black pages. What should you do to fix the problem? Use the display to initate a self cleaning cycle Use a maintenance kit to clean the printer Replace the toner cartridge Turn the printer off and back on again

Replace the toner cartridge All black pages happen when the charging unit (the charging corona wire or charging corona roller) in the toner cartridge malfunctions and fails to place a charge on the EP drum. Because the drum is grounded, it has no charge. Anyuthing with a charge (like toner) will stick to it. As the drum rotates, all of the toner is transfered to the page and a black page is formed.

1101-Chap5-176: One of your friends complains that when playing action games on their computerm the screen is slow to refresh and the motino is often jerky. Their system has a video card; their graphics are not integrated with the CPU. What should be done to resolve the problem? (choose two) Buy a new display with a faster refresh rate Increase system RAM Increase video memory Lower the screen resolution

Buy a new display with a faster refresh rate Increase video memory clearly the writers of this quesion NEVER built or upgraded a gaming rig....

1101-Chap5-182: A user just started having intermittent network access problems. While you're troubleshooting, a message pops up saying Windows has detected an IP address conflict. Your network has a DHCP server. You open the user's TCP/IP properties and its configured to all automatic. What do you need to resolve the problem? * On the DHCP server, exclude the user' IP address from the scope * On the user's computer, run ipconfig /release and ipconfig /renew * On the user's computer, set it to Use the Following IP Address and asing them a different address * Use a packet sniffer to determine the computer with the duplicate address, and change that computer to obtain an IP address automatically

Use a packet sniffer to determine the computer with the duplicate address, and change that computer to obtain an IP address automatically

ping -t

continuous ping command

1101-Chap5-189: The LCD Display you use with your desktop suddenly became very dim. You have attempted to adjust the brightness settings, but even on the highest setting, the picturew is still dim. What will most likely resolve the issue? Deguass the display Replace the backlight Replace the screen Replace the inverter

Replace the backlight

1101-Chap5-190: The lines of print on your inkjet printer are unevenly spaced. Some are too close together, while others are too far apart. What is the most likely cause of this problem? Paper feed mechanism Exit rollers Print cartridge Stepper motor

Stepper motor

1101-Chap5-192: You have sent several print jobs to a networked printer and nothing has printed. You do not have printer admin access. What can you do to see whether your Windows computer is communicating properly with the printer? Send the print job in RAW format Stop and restart the print spooler Print a test page Print a blank document from Notepad

Print a test page

1101-Chap5-193: You are troubleshooting a laptop that has poor battery life. it will work for only about 30 mins on full charge. What two things should you try first? (Choose two) Replace the battery Perform a battery calibration Drain the battery completely and then charge it fully Open the Power Management app and set the laptop to run on low energy mode

Perform a battery calibration Drain the battery completely and then charge it fully

1101-Chap5-195: You have installed a PCIe RAID controller and want to create a RAID-5 array with three disks. You plug the disks in, and boot up the computer. The RAID array is no detected. Where should you go to set up or troubleshoot the RAID array? Windows Device Manager Windows Disk Management The RAID controller's BIOS System BIOS/UEFI

The RAID controller's BIOS

1101-Chap5-200: You are troubleshooting a laser printer that keeps producing vertical blank lines running down the page. Which component is most likely causing this problem? Fusing assembly Pickup Rollers Exit Rollers EP Drum

EP Drum a grove or scratch in the EP Drum can cause a line running down a page`

1101-Chap5-205: Your corporate office has sent a memo that all remote offices must use a security protocol that your WAP doesn't support. What should you do first? Update the WAP's firmware Replace the WAP Buy all new devices Keep using the old security protocol

Update the WAP's firmware

IOPS

Input/Output operations per second