Things wrong on Mock Exams

Question 1

Do OLED displays have brighter or dimmer brightness in comparison to LEDs?

Answer 1

Dimmer

Question 2

A ______ display does not need a backlight

Answer 2

OLED

Question 3

What is a docking station

Answer 3

Something that plugs into a laptop to provide additional functionality. You plug the laptop into the docking station, and the docking station into your peripherals.

Question 4

What’s the difference between a docking station and port replicator

Answer 4

Docking stations tend to be proprietary and docking stations tend to have less features and peripheral ports.

Question 5

What is an expansion slot

Answer 5

An expansion slot refers to any of the slots on a motherboard that can hold an expansion card to expand the computer’s functionality, like a video card, network card, or sound card.

Question 6

What is the device used to extend an internet signal without quality loss

Answer 6

A repeater

Question 7

What is a network bridge
What layer is it
Does it typically have more or less connections than a switch

Answer 7

A device used to connect two network segments together as though they were all on the same network. This includes broadcast and collision domains.
Level 2
Switches typically have more connections

Question 8

If someone says they have a cable modem, what is it safe to assume they use between TP, Fiber, or Coax.

Answer 8

Coax

Question 9

What is a collision domain

Answer 9

A network in which two computer’s data can collide on the network

Question 10

What device can be used to avoid network collissions

Answer 10

Switches, as they create a point to point connection with the recipient.

Question 11

What is the name of the feature that enables ethernet over powerlines. Not POE.

Answer 11

Power-line communication

Question 12

What is the purpose of uPnP

Answer 12

Automatic configuration and discovery

Question 13

Name three wifi security standards and then rank them best to worst

Answer 13

WEP, WPA, WPS
Wifi protected access is best
Wifi protected setup sucks but is second
Wired equivalent privacy is bayd.

Question 14

What is SNAT

Answer 14

Mapping a single, routable IP address to a single internal machine on the network.

Question 15

What Ghz is 802.11b

Answer 15

2.4

Question 16

What is the speed and ghz of 802.11ac

Answer 16

5.0, 6.77 gbps

Question 17

What is a wi-fi channel and how many do 2.4 and 5.0 ghz have

Answer 17

Within the bands of 2.4Ghz and 5.0 Ghz, there are channels.
2.4 has 11 - 20 mhz
5.0 has 45 - 20, 40, 80 mhz
When multiple networks run on the same channel, it can cause interference. Likewise, being on a channel close to another active channel can also cause interference.

All in all, it’s best to keep far away from other channels.

Question 18

What is channel bonding

Answer 18

This is when you combine multiple channels to gain more bandwidth for your network

Question 19

What is wifi channel overlapping

Answer 19

wifi channels, despite being different channels, overlap somewhat.

See here
https://reolink.com/blog/5-8ghz-wireless-security-camera/
Look for the “humps”

Because some channels overlap more than others, it is suggested not to use them. The ones on either end and middle are usually the better picks.

Question 20

Which would use wider and thinner channels between 2.4 and 5.0

Answer 20

2.4 would need thinner due to there not being many channels and therefore more overlap. (20mhz)
5.0 would need thicker channel thickness due to there being 45 channels and therefore less overlap chance. (20,40,80)

Question 21

Which would use wider and thinner channels between 2.4 and 5.0

Answer 21

2.4 would need thinner due to there not being many channels and therefore more overlap. (20mhz)
5.0 would need thicker channel thickness due to there being 45 channels and therefore less overlap chance. (20,40,80)

Question 22

A client is unable to access any servers on their network, or the internet at large. You know it isn’t a wiring, wifi or server issue. All other computers on the network are working just fine. What hardware issue could cause this? (Not the NIC)

Answer 22

Cmos battery dead. Incorrect time settings can cause internet shutdowns.

Question 23

What is the first thing to do if someone calls up and says their computer won’t even power on?

Answer 23

Removing all plugged in peripherals and devices from the computer.

Question 24

A client calls up, unable to see their computer on their monitor. You go through some troubleshooting and find the cables are all fine. What’s the next thing to try?

Answer 24

Check the monitor input channel

Question 25

Which of these support video AND audio?

S/PDIF
DVI
VGA
HDMI
DisplayPort

Answer 25

DisplayPort
HDMI

Question 26

What speed is usb 3.2

Answer 26

USB 3 - 5 gbps
3.1 10gbps
3.2 40 gbps

Question 27

What is the cable lengths of:
Low-speed
Full-Speed
High-speed
SuperSpeed

Answer 27

Low-speed 3
Full-Speed 5
High-speed 5
SuperSpeed 3

Question 28

On a Windows domain, this tool can be used by system administrators to configure initial desktop environment (which may include mapping a network drive or setting up access to a shared printer) for a specific user.

A MDM policy
B Login script
C Group Policy
D Directory permissions

Answer 28

B Login script

Question 29

Which of the following statements are true? (Select 2 answers)

NTFS permissions apply only to local users
NTFS permissions can be applied only on a folder level
NTFS permissions apply to both network and local users 
NTFS permissions can be applied to a folder or individual file

Answer 29

NTFS permissions apply to both network and local users
NTFS permissions can be applied to a folder or individual file

Question 30

What is DLP (security term)

Answer 30

DLP, or Data Loss Prevention, is a cybersecurity solution that detects and prevents data breaches. Since it blocks extraction of sensitive data, organizations use it for internal security and regulatory compliance.

Question 31

What is an important thing to do when you are re-mapping someone’s drive?

Answer 31

Ask if they’ve changed their password recently. If so, clear their windows credential cache.