Data Representation - Hexadecimal System

Question 1

What is a hexadecimal system?

Answer 1

Number system with base 16

Question 2

What is the hexadecimal value for the denary number 10?

Answer 2

A

Question 3

What is the hexadecimal value for the denary number 15?

Answer 3

F

Question 4

Each ______ is represented as a digit in the hexadecimal system

Answer 4

nibble

Question 5

Applications of a hexadecimal system?

Answer 5

Defining colours
RGB model
Identifying software errors
MAC address
URLs and assembly code

Question 6

A MAC address is made of __ bits

Answer 6

48

Question 7

What does the first half of a MAC address represent?

Answer 7

Identity number of the manufacturer

Question 8

What is parity checking?

Answer 8

It is an error-checking method that uses a parity bit in each byte of data. This bit is allocated prior to transmission.

Question 9

What is an even parity?

Answer 9

An even parity has an even number of bit 1s in a byte.

Question 10

What is a check digit?

Answer 10

Check digit is an error-detection method used in barcodes that uses an additional digit at the end of a string or numbers.

Question 11

How are colours represented?

Answer 11

Hexadecimal numbers in #RRGGBB. Each letter corresponds with the amount of that primary colour

Question 12

Hex code representing black

Answer 12

000000

Question 13

Hex code representing white

Answer 13

FFFFFFF

Question 14

Colour code for representing green

Answer 14

00FF00