You are investigating computer specifications for a new desktop workstation. If the

specifications include 256 KB of L2 cache, approximately how much L1 cache would

it be reasonable to expect the computer to have?

• 64 KB

• 256 KB

• 512 KB

• 12 MB

Answer explanation

L1 is usually the smallest and fastest cache.

You have installed a printer on your Windows 10 computer using TCP printing and

configured it to use the RAW protocol. Which port number will you need to open in

Windows Firewall for this to work successfully?

• 9100

• 721

• 515

• 443

Answer explanation

RAW protocol uses TCP port 9100 by default

A user reports that his iPhone will not make any sounds. He has turned the phone off

and back on, and the problem is still there. You check his settings, and the phone is

not on silent mode and the volume is set to maximum. What can you do to fix this

problem?

• Reset the phone to factory specifications.

• Replace the speakers.

• Replace the sound card.

• Replace the phone.

Answer explanation

In most cases it's cheaper to replace the device than the component

You have a laptop with a dead hard drive. You want to replace it with a newer SSD but

have a few concerns. What disadvantages do SSDs have versus HDDs? (Choose two.)

• They produce more heat.

• They are more expensive.

• They are more susceptible to damage.

• They have less capacity.

Answer explanation

Producing less heat and being less susceptible to damage are two ADVANTAGES of SSD's over HDD's

You purchased a new monitor that has a native resolution of 1920×1080. What

aspect ratio is this, and is it compatible with widescreen television aspect ratios?

• 16:9, yes

• 16:9, no

• 16:10, yes

• 16:10, no

Answer explanation

You can determine this by dividing the first

number in the resolution by 16 and multiplying the result by 9. It should equal the

second number. Hence 16:9

A laser printer you are working on is producing images that have vertical black

streaks running the length of the page. Which of the following could be causing this?

(Choose two.)

• Scratch in the EP drum

• Fusing assembly not heating up properly

• Worn exit rollers

• Dirty charging corona wire

You have installed an 802.11g Wi-Fi network. The network has three overlapping

wireless access points. What channels should you set the access points to in order to

avoid communications problems?

• 1, 5, and 9

• 1, 6, and 11

• 2, 7, and 12

• Any three different channels will work fine.

Answer explanation

In 802.11g, the three nonoverlapping channels are 1,6, and 11.

You are installing an ATX power supply. Which of the following is not a voltage

provided by the power supply?

• -3.3

• +5

• +12

• -12

A user complains that his desktop computer randomly reboots. He does not see any

error messages before it happens, and there is not a specific program that triggers the

reboot. Which of the following components is most likely to be causing this problem?

• RAM

• Hard drive

• BIOS

• Network adapter

A user calls the help desk to report that she has no network connectivity. She had

connectivity yesterday, but when she booted up her desktop computer this morning,

she could not connect. She does not use the wireless network. No other users have

reported issues. What is the first thing you should do?

• Check to see whether the network card driver is responding.

• Run ipconfig to see what her IP address is.

• Use a loopback plug to test the network card.

• Check to ensure that the network cable is plugged in.

Answer explanation

Because, always check the simple thing first