Computer Science questions and answers

Computer Science Questions and Answers

Challenge your competence level in computers, computing, algorithms, hardware and software with these Computer science questions and answers.

156.

A half byte is known as ________

A.

data

B.

bit

C.

half byte

D.

nibble

Correct answer is D

A nibble is a 4 bit aggression, or half an octet. It has 16 possible values, and can be represented by a single hexadecimal digit which are called hex digit

157.

Which of the memories must be refreshed many times per second?

A.

EPROM

B.

ROM

C.

Static RAM

D.

Dynamic RAM

Correct answer is D

Dynamic RAM memory must be refreshed many times a second because without it being refreshed often, it will lose the data contents it holds

158.

Which of the following is not a type of computer network?

A.

VPN

B.

CAN

C.

WLAN

D.

DAN

Correct answer is D

Dan is not a type of computer network

159.

Which type of network can span several building, but is usually less than 30 square miles big?

A.

CAN

B.

LAN

C.

MAN

D.

WAN

Correct answer is C

CAN usually provides network for places which are less than 30 square miles

160.

Which type of network is usually contained inside one office building?

A.

CAN

B.

LAN

C.

MAN

D.

WAN

Correct answer is B

A local area network is the most suitable network for an office building because, it gives network to computer at a single site