Hardware and Network Tblsh (Chapter 12) Flashcards
What are two possible causes of data loss or extended read and write times on an HDD?
The drive is too full and doesn’t have enough room to move temporary files or it’s failing.
What is HD IOPS?
Input/output operations per second
What is HD SMART?
Self-monitoring, analysis, and reporting technology—essentially just analytics.
It lets you know if a hard drive is going to fail
How can you tell if a RAID disk has failed?
It shows a steady light meaning it needs to be replaced.
What could cause the system to say it can’t find the OS?
A problem with the MBR.
How do you fix a broken MBR?
Open WinRE command prompt and enter bootrec /fixmbr or /fixboot for the boot sector.
Why might windows not detect a new drive?
It hasn’t been formatted or configured in Disk Management yet
What are the first two things you should do in troubleshooting a lack of display with laptop and second display such as a projector or TV?
Check the output with the fn key on the laptop
Make sure the external display is set to the correct input
Do projector bulbs last forever?
No, and over time, heat can shorten the life span of them. If it burns out, replace it.
Why might a projector have a fuzzy image?
It may not be focused for that distance. Check menu options or manually adjust it.
Why might an LCD appear fuzzy?
May be set for the wrong resolution. More rarely, it can be caused by interferences such as magnets.
How can you check for a dead pixel?
Set to a white background and see if it’s still off.
What are the two most likely reasons for a flickering LCD?
The backlight or power inverter is failing
You can also check for loose cables.
Why might an LCD show incorrect colors?
The controller board is failing.
Why might an LCD be too dim?
The backlight is failing or the brightness is turned down.
What can cause a projector to randomly shut down?
Overheating
Check for fan functionality or dust buildup.
What can you do if a laptop battery will not charge?
Remove and reseat battery.
How can you verify if there is a short or power drain from an external device on a laptop?
Remove all devices and see if it helps.
On modern phones, what’s the most likely solution for a swollen battery?
Get a new phone. But turn it off first.
What is the first way to test an overheating laptop after checking the fans or dust?
Swap out the battery.
What key can you test to see if it’s stuck when the keyboard doesn’t appear to be working?
The FN key.
What can cause a ghost cursor?
Unintentionally touching the touchpad when typing. Disable it.
What input device can cause cursor drift?
The point stick not centering itself
What should you do for a poorly functioning laptop digitizer/touchscreen?
Recalibrate it under Control Panel>Hardware and Sound
If the touchscreen on a mobile device isn’t working, what’s the best you can do?
Restart it.
What’s the first step in troubleshooting the wireless connection on a laptop?
Make sure the NIC is turned on.
What is a common cause for a weak wireless signal that keeps dropping?
Distance from or obstructions between the WAP
How can you fix a physically damaged port?
Replace it,
What’s the first step in troubleshooting malware?
Identify the type.
What should you do after identifying the type of malware on a computer?
Quarantine it
What’s the very last step in troubleshooting malware?
Educate the end user.
What’s the most common way malware ends up on mobile phones?
Downloading malicious apps
On an impact printer, what can cause a small blank or black line down the page?
A print head pin stuck in the out or in position.
How can a stepper motor be unintentionally damaged?
By forcing them in any direction while turned on. It generates a charge and damages it.
How can you detect a damaged main stepper motor?
The lines will be unevenly spaced.
What printer component can cause a grinding or squealing sound?
The stepper motor. They need to be replaced.
What happens if you don’t use an inkjet printer for a while?
The cartridges dry out and block the nozzles.
How can a blocked inkjet nozzle be detected?
Thin, blank lines through all lines of text.
How can faded printing be fixed in an inkjet printer?
Replace the inkjet cartridge.
Should you refill ink cartridges?
No. They’re not designed to be refilled.
What can cause smeared letters with an inkjet printer?
The ink cartridge is damaged or has a hole. Causes too much ink to be dispensed.
What causes prints to quickly go from dark, to light, to nothing? How is it fixed?
The priming pump is broken. Replace the cartridge.
What two things can cause an incorrect chroma? How can it be fixed?
Leaking cartridge or wrong type of paper.
If both of these are correct, try cleaning the cartridges and verify they are installed in the right spots.
What can cause dots or speckling on inkjet prints?
Paper dust or residue. Clean or blow it out.
In inkjet printers, what two things are most likely to cause paper jams?
Worn pickup roller, wrong type of paper
What part is responsible for making sure only one page of paper is picked up?
Separation pads
What problems does sticky or humid paper cause?
Jams or multifeed
In an inkjet printer, what component failure can cause uneven spacing or scrunched letters?
Stepper motor
Recall the EP process using People Choose to Eat Donuts To Feel Content
Processing
Charging
Exposing
Developing
Transferring
Fusing
Cleaning