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Binary ⇄ Decimal ⇄ Hexadecimal

Total questions: 30

Worksheet time: 20mins

Name
Class
Date
1.

How many bits are there in a byte?

a)

8

b)

10

c)

2

d)

9

2.

How many bits in a nibble?

a)

2

b)

4

c)

8

d)

1

3.

How many nibbles are there in a byte?

a)

1

b)

2

c)

4

d)

8

4.

11010111 in binary is...

a)

ODD

b)

EVEN

5.

10111110 in binary is...

a)

ODD

b)

EVEN

6.

How can you tell if a binary sequence (01110010) is even?

a)

You add all the 1s up and if it's even then the binary sequence is even

b)

If there is a 0 on the end then it's an even number

c)

If there is a 1 on the end then it's an odd number

d)

You cannot

7.

How can you tell if a binary sequence (01110011) is even?

a)

You add all the 1s up and if it's oddthen the binary sequence is odd

b)

If there is a 0 on the end then it's an even number

c)

If there is a 1 on the end then it's an odd number

d)

You cannot

8.

What is another name of the Base 10 number system?

a)

Binary

b)

Denary

c)

Hexadecimal

9.

State the decimal representation for the hexadecimal number C

a)

12

b)

13

c)

14

d)

15

10.

The hexadecimal number FF has the value of 255 in decimal -

a)

TRUE

b)

FALSE

11.
Convert the Hex number 1F to binary.
a)
00111111
b)
00001111
c)
00010111
d)
00011111
12.
Convert the Hex number 10 to binary.
a)
00010000
b)
00000010
c)
00010100
d)
00100000
13.
Convert the binary number 10101010 to Hex
a)
AA
b)
BB
c)
CC
d)
DD
14.
Convert the binary number 11101011 to Hex
a)
EA
b)
EB
c)
BA
d)
BC
15.
With a number system, what is a "base" referring to?
a)
The number of symbols, including 0, that make up the counting method of that system
b)
The number of Columns that a number system can support
c)
A method of comparing different number systems
d)
The number of sets a number system can represent before needing a larger based number system
16.
Convert 10112 in to Denary (Base 10).
a)
10
b)
11
c)
9
d)
8
17.
Convert denary 160 to binary.
a)
10100000
b)
11110110
c)
11101010
d)
00000100
18.
The hexadecimal value 7A16 is equivalent to what decimal value?
a)
122
b)
81
c)
123
d)
26
19.
Convert 3B16 to a binary value.
a)
001010112
b)
001110112
c)
001111012
d)
001111002
20.
Decimal numbers are base 
a)
2
b)
4
c)
8
d)
10
21.
Binary is base
a)
16
b)
10
c)
2
d)
32
22.

A bit is

a)

a numerical label assigned to each device.

b)

the smallest unit of data in a computer.

c)

a keyboarding term for typing.

d)

just a lil bit.

23.
The biggest number you can make with 4 binary digits is _____
a)
15
b)
14
c)
13
d)
16
24.
What is approximately 1,000 bytes.
a)
Gigabyte
b)
Kilabyte
c)
Megabyte
d)
Byte
25.

One hex character is...

a)

1 nibble

b)

1 byte

c)

4 bits

d)

1 chomp

26.

Why was hex created?

a)

To simplify the representation of binary sequences

b)

Letters needed to be used more in life

c)

It actually came before binary

d)

To confuse students in their GCSEs

27.

What does the little number after the big number signify? (ie. 10100₂)

a)

How many times to multiply the number by

b)

The base (or radix) of that number's number system

c)

Absolutely nothing

d)

Whether the number is odd or even

28.

Where is hexadecimal used on the internet?

a)

To represent colours (RGB values)

b)

It's written into every website to display text

c)

Videos are stored in hex

d)

On BBC Bitesize and that's the only place you'll ever find it

29.

Where is hexadecimal used inside a computer?

a)

For the locations of memory

b)

For interfacing between a printer and Microsoft Word

c)

It is never, only humans use it

d)

Sound plays quicker in hex, so we store it in hex

30.

00 - FF in HEX is the same as what in BINARY?

a)

00000000 - 11111111

b)

01010101 - 10101010

c)

00001111 - 11110000

d)

11111110 - 11111111

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