2.1 Cable Types

Question 1

A single “bit” can store one of two values, what are they?

Answer 1

1 or 0

Question 2

What are 4 bits called?

Answer 2

A “Nibble” (0100)

Question 3

What is 8 bits called?

Answer 3

“Byte” (11011010)

Question 4

What is the abbreviation for “bits”?

Answer 4

b

Question 5

What is the measurement for speed of data transfer rate abbreviated as?

Answer 5

bps (bits per second)

Question 6

1000 bits =

Answer 6

1Kbs

Question 7

There is big B and little b, what is the difference between the two?

Answer 7

B=Bytes while b=bits

Question 8

1million bits =

Answer 8

1Mb (Megabit)

Question 9

1million bytes =

Answer 9

1MB (Megabytes)

Question 10

1billion bits =

Answer 10

1Gb

Question 11

1billion bytes =

Answer 11

1GB

Question 12

1Kbps = to how many bytes per second

Answer 12

125Bps

Question 13

SPDIF Connector

Answer 13

An optical connector that allows high quality audio to a surround sound
system
▪ USB 2.0 speeds are good for a microphone, a mouse, or a keyboard

Question 14

Kensington Lock

Answer 14

Kensington Lock

Question 15

DB 25 Connector

Answer 15

A D-shaped sub miniature pin that goes into the back of a computer and
has two thumb screws on the side

Question 16

Serial Cable

Answer 16

A cable that sends data in ones and zeros in a straight line, but it can only
send one bit at a time, which is measured at the speed of cables in bits
per second
No faster than 125Kbps

Question 17

DB9 Connector

Answer 17

A slow speed connection for much older mice keyboards and other
external modems
▪ A USB 1 and a USB 2 run at a much slower speed and should be split
across a hub
▪ A USB 1.0 has the slowest speed out of a USB with a maximum speed of
1.5 megabits per second

Question 18

USB 1.1

Answer 18

Known as full speed and runs at 12 megabits per second

Question 19

USB 2.0

Answer 19

▪ Known as high speed and runs at 480 megabits per second

Question 20

USB 3.0

Answer 20

Known as super speed and is at least 5 gigabits per second

Question 21

USB 3.1 Gen One

Answer 21

Runs at 5 gigabits per second

Question 22

USB 3.1 Gen Two

Answer 22

Runs at 10 gigabits per second

Question 23

USB 3.2 Gen 2x2

Answer 23

Runs at 20 gigabits per second

Question 24

USB 4

Answer 24

USB 4
▪ The most modern version of USB and can run at 40 gigabits per second
▪ A USB 4 and a USB 3.2 gen 2x2 must have a shorter cable because that is
going to give the best performance
▪ The longer a cable, the more likelihood that the cable would not work as
efficiently, or even at all
● Type A
● Type C
● Type B
● Type B Mini
● Type B Micro

Question 25

USB 1.0

Answer 25

Known as Low Speed and runs 1.5Mbps

Question 26

How many amps of power can USB1.0/2.0 provide

Answer 26

500 milliamps or 0.5 amps

Question 27

How much amps can USB 3.0 provide

Answer 27

900 milliamps or 0.9amps

Question 28

How much amps can a Powered device (PD) port provide

Answer 28

1500 milliamps or 1.5 amps (7.5W)