JAMB Computer Science Past Questions & Answers - Page 28

136.

A logic circuit performs ________ functions

A.

Interpretation

B.

Processing and Controlling

C.

Storage

D.

Security

Correct answer is B

The logic circuit performs the function of processing and controlling in a computer. They perform logical operations

137.

Computer files can be characterised by all but,

A.

A title

B.

It's accessibility

C.

The ability to be modified

D.

Where it is stored

Correct answer is D

The storage position of a file isn't one of its numerous characters because, it can be stored either in a primary or secondary memory

138.

Numerous files are referred to as _____________

A.

Files

B.

Folder

C.

Memo

D.

Drafts

Correct answer is B

Folders are created to help collate similar files before storing them. This helps to find files from folder because of its orderly arrangements

139.

What is the function of firewall?

A.

Service provider

B.

Cyber security

C.

Internet browser

D.

Storage device

Correct answer is B

Fire Wall could be either a software or hardware, but its major function is to help secure a computer system or website from hackers

140.

Which of the following is an example of software

A.

Joy stick

B.

Keyboard

C.

Operating systems

D.

Mouse

Correct answer is C

Operating system is the only example of software from the options