WAEC Computer Science Past Questions & Answers - Page 13

61.

A single hexadecimal digit is represented by?

A.

one bit

B.

two bits

C.

four bits

D.

eight bits

Correct answer is C

No explanation has been provided for this answer.

62.

Digital signals can be represented by:   

I. Binary Codes

Il.0 and 1

III. High and Low Which of the following options is correct?

A.

l and Il only

B.

I and lIl only

C.

II and lIl only

D.

I, Il and III

Correct answer is A

No explanation has been provided for this answer.

63.

In a Windows operation involving dragging and dropping an item on the desktop, the item will be? 

A.

deleted from the screen

B.

duplicated

C.

moved to a new location.

D.

renamed

Correct answer is C

No explanation has been provided for this answer.

64.

A feature on the computer desktop that indicates the current active applications is called?

A.

icon

B.

menu bar

C.

ribbon

D.

task bar

Correct answer is D

No explanation has been provided for this answer.

65.

Removing a program on a computer properly requires? 

A.

deleting

B.

archiving

C.

disabling

D.

uninstalling

Correct answer is D

No explanation has been provided for this answer.