WAEC Past Questions and Answers - Page 2512

12,556.

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.

12,557.

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.

12,558.

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.

12,559.

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.

12,560.

In database application, the field length determines the?

A.

maximum number of characters the field can accommodate

B.

maximum number of operations that can be performed on the field

C.

level of security of the database

D.

maximum number of datatype the field can contain

Correct answer is A

No explanation has been provided for this answer.