Question 1

What is the maximum denary value that can be represented using a single byte (8 bits)?

Accepted Answer

255

Answer

127

Answer

128

Answer

256

Question 2

An

8

-bit register contains the binary number

11111111

. If a program attempts to add

00000001

to this value, what is the most likely result for the computer system?

Accepted Answer

An overflow error occurs because the result requires

8

bits and cannot fit in the register.

Answer

The CPU ignores the extra bit and the calculation continues without any error flags.

Answer

The number wraps around to

8

and sets a negative flag.

Answer

The register automatically doubles its size to

8

bits to accommodate the new value.

Question 3

What is the result of converting the denary number

8

into an 8-bit binary number?

Accepted Answer

11111111

Answer

10000000

Answer

11111110

Answer

01111111

Question 4

If you convert the denary number

8

into an 8-bit binary number, what is the result?

Accepted Answer

00101101

Answer

00010110

Answer

00111101

Answer

00101011

Question 5

Which of the following units of data measurement is the largest?

Accepted Answer

Petabyte

Answer

Gigabyte

Answer

Terabyte

Answer

Megabyte

Question 6

How many bits are contained within

8

bytes of data?

Accepted Answer

24 bits

Answer

30 bits

Answer

1,024 bits

Answer

12 bits

Question 7

Which of the following describes the correct relationship between a Terabyte (TB) and a Gigabyte (GB)?

Accepted Answer

1 TB = 1,024 GB

Answer

1 TB = 8 GB

Answer

1 TB = 1,000 MB

Answer

1 TB = 1,024 PB

Question 8

A digital file has a size of

8

Megabytes. How many Kilobytes is this equivalent to?

Accepted Answer

2,048 KB

Answer

1,024 KB

Answer

16 KB

Answer

2,000 KB

Question 9

Which specific unit represents exactly

8

bits of data, often described as half of a byte?

Accepted Answer

Nibble

Answer

Kilobyte

Answer

Chunk

Answer

Bit

Question 10

How many possible values can a single bit represent?

Accepted Answer

2

Answer

10

Answer

8

Answer

1

Question 11

Which of the following describes the relationship between a bit and a byte?

Accepted Answer

There are 8 bits in 1 byte

Answer

There are 4 bits in 1 byte

Answer

There are 1024 bits in 1 byte

Answer

One bit is larger than one byte

Question 12

If a computer system uses 4 bits to represent a value, how many unique combinations can be created?

Accepted Answer

16

Answer

4

Answer

32

Answer

8

Question 13

Which of the following describes the fundamental physical representation of a bit within a computer's hardware?

Accepted Answer

An electrical switch that is either on or off

Answer

A mathematical variable that can hold any decimal number

Answer

A character stored as a letter of the alphabet

Answer

A tiny pixel that changes color

Question 14

If you have

8

bits, what is the total number of unique sequences that can be formed?

Accepted Answer

8

Answer

3

Answer

6

Answer

9

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