Hardware and Network Troubleshooting (3) Flashcards
A user claims that on his laptop, the mouse curser will occasionally jump to different areas of the screen when he is typing. It is causing problems with his work because he ends up typing in different fields than he needs to. What can you suggest to help this issue?
Disable the point stick
Replace the keyboard
Disable the touch pad
Disable the touch pad
When users are typing, their palm might rest on the touch pad, causing erratic pointer behavior. This is referred to as a ghost cursor because it seems like the cursor just randomly jumps all over the screen. The touch pad can be turned off through Control Panel. Depending on the OS, you disable the touch pad under Settings
A user complains of a burning smell coming from her desktop computer. You instruct her to immediately shut the system down. What should be your next step?
Replace the power supply
Test the power supply with a multimeter
Inspect the inside of the computer for visible signs of damage
Inspect the inside of the computer for visible signs of damage
If you smell an odd odor or see smoke coming from a computer, shut it down immediately. Open the case and start looking for visible signs of damage. Things to look for include melted plastic components and burn marks on circuit boards. If components appear to be damaged, it’s best to replace them before returning the computer to service
The desktop computer in your office’s lobby plays a welcome video for guests. Recently, the audio started intermittently failing. You replaced the speakers, and it still happens. What is the next step you should take in troubleshooting the issue?
Reseat the speakers
Replace the sound card
Reseat the sound card
Reseat the sound card
One potential cause of intermittent device failures is chip creep, which happens when components such as expansion cards start to creep out of their socket. This can be caused by heating and cooling. Reseat the card (and screw it into the case!) and see whether that resolves the issue. If not, you may need to replace the sound card
A user reports that her iPhone 5 is always overheating and constantly locks up. What should you advise her to do?
Replace the battery
Turn off the phone and let it cool down
Replace the phone
Replace the phone
If overheating is persistent, you have a few options. The first is to test or replace the battery, as that’s the most likely culprit. With mobile phones, though, the battery is not designed to be field replaceable. In this case, she may have to replace the device
You have just used administrative privileges to install a printer on a user’s workstation. When the user tries to print to the printer, she gets an error message saying access denied. What is the cause of this problem?
The printer is offline
The printer is out of memory
The user does not have the security permissions to print
The user does not have the security permissions to print
In a networked environment, users need the proper permissions both to install and to print to the printer. Not having permission will result in denied access
You are using a CRT monitor at a kiosk. The colours on the monitor recently started looking wrong. What should you do to try to resolve the issue?
Replace the monitor
Replace the video card
Degauss the monitor
Degauss the monitor
Seeing incorrect colors is most likely a monitor issue, and you can always confirm it by switching monitors. On CRTs, you can use a process called degaussing (decreasing or eliminating an unwanted magnetic field), which is done through a utility built into the menu on the monitor, to try to fix the problem. If that doesn’t make the problem go away, it’s probably time to replace the monitor
The ink-jet printer in your office jams a lot and produces many crinkled papers. What is the most likely cause of this?
Dirty print heads
Obstructed paper path
Paper that is too dry
Obstructed paper path
Printer jams (aka “the printer crinkled my paper”) happen when something prevents the paper from advancing through the printer evenly. There are generally three causes of printer jams: an obstructed paper path, stripped drive gears, and using the wrong paper
A user reports that her Windows 7 computer will not boot. When booting, it gives the error message, “Operating System not found.” Which utility can you use to attempt to fix this issue?
format
bootrec
diskpart
bootrec
This error message indicates that the master boot record (MBR) on the hard drive is missing or damaged. The bootrec utility can be run in Windows 10, Windows 8/8.1, Windows 7, or Windows Vista to interact with the Master Boot Record (MBR), boot sector or Boot Configuration Data (BCD) store. To run the tool, you must boot from the installation disk, choose the Repair Your Computer option, and enter the System Recovery Options. Choose Command Prompt from System Recovery Options and then type BOOTREC.EXE.
A technician is troubleshooting a computer configured for wired network connection that can’t connect to the network. Given the unavailable resources including the internet, he verified that the cable is plugged in, but there are no lights lit on the network card. The computer could connect yesterday, and no other users report an issue. Which of the following are most likely to be causing this problem? (Choose two)
Faulty network cable
Faulty network card driver
Incorrect TCP/IP configuration
The cable is unplugged at the other end
Faulty network cable
The cable is unplugged at the other end
If the network card doesn’t have any lights, it doesn’t have a connection. It could be that the cable is bad or that it’s not plugged in on the other side, or it could also be a problem with the NIC or the connectivity device on the other side. If nobody else in the same area is having the same problem, that points to an issue with this computer or cable
While replacing a toner cartridge in a laser printer, a technician spilled toner on and around the printer. What should he use to clean up the spill?
A damp cloth
Compressed air
A toner vacuum
A toner vacuum
Most of the time if you have dust or debris in a printer, you can go ahead and use compressed air to blow it away. Don’t do that with toner, though, because it will make a huge mess. If you have a toner spill, use a specialized toner vacuum to pick it up. Also, never use a damp cloth to try to clean up a toner spill. If a cloth is needed, use a dry one
The AC adapter for your laptop has a green LED indicator on it. When you plug the adapter into a wall outlet, the light does not illuminate. What could be the reason for this? (Choose two)
The laptop is off
The wall outlet is defective
The AC adapter is defective
The voltage selector for the AC adapter is set incorrectly
The wall outlet is defective
The AC adapter is defective
Many laptop power adapters have a light on them indicating that they’re plugged in. If there’s no light, check to make sure that the outlet is working or switch outlets. Also, most laptops have a power-ready indicator light when plugged into a wall outlet as well. Check to see whether it’s lit. If the outlet is fine, try another power adapter. They do fail on occasion
You are troubleshooting an ink-jet printer. Users report that the printer is printing in the wrong colours. The problem just started happening recently. What could be causing it? (Choose two)
Ink cartridges installed in the wrong spot
Leaking ink cartridges
Malfunctioning fusing assembly
Malfunctioning stepper motor
Ink cartridges installed in the wrong spot
Leaking ink cartridges
Sometimes, when you print a color document, the colors might not be the same colors that you expected based on what you saw on the screen. A few different issues could cause this problem. First, ink could be bleeding from adjacent areas of the picture, causing the color to be off. A leaking cartridge can cause this, as can using the wrong type of paper for your printer. Second, the ink cartridges could be installed in the wrong spot. Third, it could be a dirty print head. Try running the self-cleaning routine
You have installed an 802.11ac wireless access point for a company. To cut costs, the company wanted only one central access point in the building, which is about 150 feet long. Users at both ends of the building report intermittent wireless connectivity drops and slow access. What is the most likely the cause of the problem?
Low RF signal
SSID not found
IP address conflicts
Low RF signal
The most common reason that users on wireless networks experience intermittent connectivity issues is distance. The farther away from the WAP the user gets, the weaker the signal becomes. When the signal weakens, the transfer rates drop dramatically. Ways to fix a low RF signal range from using a more powerful transmitter, using a larger antenna, focusing the signal toward where it is needed, or moving the users closer
You are disassembling a defective laptop to replace the motherboard. Which of the following steps are recommended? (Choose two)
Place the screws in a multicompartment pill box and label where they go
Remove the hard drive before removing the motherboard
Label where the cables plug into the motherboard
Use needle-nose pliers to remove the motherboard from the spacers
Place the screws in a multicompartment pill box and label where they go
Label where the cables plug into the motherboard
When repairing laptops, you should always document and label screw and cable locations, organize parts, refer to manufacturer instructions, and use appropriate hand tools. In some cases, but not all, you might need to remove the hard drive to remove the motherboard. To remove the motherboard, use appropriate tools recommended by the manufacturer as each system can be different
A user reports that his LCD monitor is flickering constantly. What is the easiest course of action to resolve this problem?
Replace the video card
Replace the monitor
Degauss the monitor
Replace the monitor
In an LCD monitor, dimness or flickering is most commonly caused by the backlight starting to fail. In those cases, replace the backlight or the monitor
