Units & Numbers

1. Question

2 point(s)

What is a bit?

Select three statements that are true.

It is the smallest unit of data inside a computer.
It is either a 1 or a 0.
It is a collection of 1’s and 0’s.
It is represented by a switch being open or closed.
It is a collection of bytes.

2. Question

1 point(s)

What is a byte?

It is a 1 or a 0.
It is 4 bits.
It is 8 bits.
It is 16 bits.

3. Question

1 point(s)

How many nibbles are there in a byte?

1
2
4
8

4. Question

1 point(s)

How many bytes are there in a Kilobyte?

100
1000
100,000
1,000,000

5. Question

1 point(s)

How many Kilobytes are there in a Gigabyte?

10
1000
100,000
1,000,000

6. Question

2 point(s)

What is a Terabyte?

Select three statements that are true.

0.001 Petabytes.
A thousand Gigabytes.
A billion Megabytes.
A billion Kilobytes.
A thousand Petabytes.

7. Question

1 point(s)

How many Kilobytes are there in 5 Petabytes?

5,000
5,000,000
5,000,000,000
5,000,000,000,000

8. Question

1 point(s)

How many Megabytes are there in 56 Gigabytes?

5,600
56,000
560,000
5,600,000

9. Question

1 point(s)

How many Megabytes are there in 840 Kilobytes?

0.084
0.84
8.4
84

10. Question

1 point(s)

Why does all data have to be represented in binary in the computer?

Select two statements that are true.

It is very fast.
It is very simple.
The computer components are made up of switches which can only store 1 or 0.
It is easy to program as there only is a 1 or a 0
If electricity is present that is a 1 if it is absent it is a 0.

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