Question 1

What is the denary (decimal) value of the binary number 10110?

Accepted Answer

22

Answer

18

Answer

26

Answer

30

Question 2

What is the place value of the digit 4 in the denary number 3409?

Accepted Answer

400

Answer

40

Answer

4000

Answer

4

Question 3

What is the hexadecimal equivalent of the denary number 45?

Accepted Answer

2D

Answer

2F

Answer

3C

Answer

3A

Question 4

Convert the binary number 110011 to denary.

Accepted Answer

51

Answer

53

Answer

55

Answer

57

Question 5

What is the result of adding 1011 and 1101 in binary?

Accepted Answer

11110

Answer

11000

Answer

10010

Answer

10100

Question 6

Adding 11110000 and 00011000 in an 8-bit system results in:

Accepted Answer

1000

Answer

11111000

Answer

100001000 (overflow)

Question 7

What is the result of shifting 00101100 two places to the left in an 8-bit register?

Accepted Answer

1100000

Answer

1011000

Answer

10110000

Answer

10110

Question 8

What is the twoâ€™s complement of -45 in an 8-bit system?

Accepted Answer

11010011

Answer

11001011

Answer

11100101

Answer

101101

Question 9

What is the ASCII code for the character 'C'?

Accepted Answer

67

Answer

68

Answer

66

Answer

65

Question 10

How many bits can Unicode use per character at maximum?

Accepted Answer

32

Answer

8

Answer

64

Answer

16

Question 11

A sound is sampled at 8 kHz with 8-bit resolution for 1 second. Whatâ€™s the file size in bytes?

Accepted Answer

8000

Answer

64000

Answer

4000

Answer

16000

Question 12

How many colors can a 4-bit color depth represent?

Accepted Answer

16

Answer

4

Answer

8

Answer

32

Question 13

How many bytes are in 1 MiB?

Accepted Answer

1048576

Answer

1073741824

Answer

1000

Answer

1024

Question 14

What is the file size in bytes of a 100x100 pixel image with 8-bit color depth?

Accepted Answer

10000

Answer

16000

Answer

8000

Answer

12000

Question 15

A 2-second mono sound at 44.1 kHz and 16-bit resolution is how many bytes?

Accepted Answer

176400

Answer

352800

Answer

44100

Answer

88200

Question 16

What is a primary reason for data compression?

Accepted Answer

Reduce file size

Answer

Enhance color depth

Answer

Increase sampling rate

Answer

Improve image resolution

Question 17

Which is an example of a lossy compression format?

Accepted Answer

MP3

Answer

PNG

Answer

RLE

Answer

ZIP

Question 18

What does RLE encode in the string "aaaabb"?

Accepted Answer

4a2b

Answer

3a2b

Answer

6ab

Answer

aaabb

Question 19

What color does the HTML code #00FF00 represent?

Accepted Answer

Green

Answer

Blue

Answer

Yellow

Answer

Red

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