Numbering System CS AS

1.

Multiple Choice

2 mins

1 pt

Convert the hexadecimal number 2C to decimal

3A

34

44

4A

2.

Multiple Choice

30 sec

1 pt

How many nibbles are there in a byte?

2

4

6

8

3.

Multiple Choice

30 sec

1 pt

Signed Integers Represent Which Type of Binary Values

Any Positive Value between 0-255

Any Negative Value between -128 and 0

Any Value between Negative (-128) and Positive +127

A Signed Integer Means that the Binary value is always 0

4.

Multiple Choice

30 sec

1 pt

A group of 8 bits is known as a gigabyte.

True

False

5.

Multiple Choice

30 sec

1 pt

What is 0101 + 1010?
HINT:
1 + 0 = 1
0 + 1 = 1
1 + 1 = 10

1111

2020

146.6

?

6.

Multiple Choice

20 sec

1 pt

ASCII is:

a numerical system that has 2 rather than 10 as a base.

the most common format for text files in computers and on the Internet

7.

Multiple Choice

2 mins

1 pt

Calculate the binary addition:

1111

1011

110101

11110

11011

11010

8.

Multiple Choice

30 sec

1 pt

Lossy Compression is used with Audio files

True

False

9.

Multiple Choice

30 sec

1 pt

RLE is a type of

Lossy Compression

Lossless Compression

Analogue to digital conversion

None of the above

10.

Multiple Select

45 sec

1 pt

Lossy Compression can be applied on ( Tick all that apply)

Audio Files

Word Files

Video Files

Drawing

11.

Multiple Choice

30 sec

1 pt

I can ........... with an audio editor software

Edit the start and end time of the sound waves

Remove noise

Mix multiple sources

All of the above

12.

Multiple Choice

30 sec

1 pt

To create a company logo it has to be ................ format

Vector

Bitmap

13.

Multiple Choice

30 sec

1 pt

Frame Rate is

number of frames recorded per second.

number of sound amplitudes recorded per second.

number of pictures in a book

None of the above

14.

Multiple Choice

30 sec

1 pt

If you multiply th width by the height of a bitmap you will calculate the total number of dots in the image. This is called the...?

Definition

Resolution

Frequency

Amplitude

15.

Multiple Choice

30 sec

1 pt

In interlacing Encoding the odd lines are displayed followed by even lines

True

False

16.

Multiple Choice

30 sec

1 pt

The higher the audio sampling rate the higher is the file size

True

False

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