WAEC Computer Science Past Questions & Answers - Page 6

26.

The signals from Ato modem X in the diagram above are

A.

analogue

B.

digital

C.

electrons

D.

protons

Correct answer is B

No explanation has been provided for this answer.

27.

The protocol used for email transmission is known as ?

A.

HTTP

B.

DHCP

C.

IP

D.

SMTP

Correct answer is D

No explanation has been provided for this answer.

28.

The virtual communication platform where many people keep in contact with family and friends is known as

A.

microsoft visio

B.

social engineering

C.

cyberspace

D.

virtual reality

Correct answer is C

No explanation has been provided for this answer.

29.

The part labelled Y in the compiler interface in the diagram represents

A.

intermediate code

B.

binary code

C.

object code

D.

pseudocode

Correct answer is C

No explanation has been provided for this answer.

30.

The QBASIC statement LETX=Y-3 means

A.

the variables X and Y both receive the value 3

B.

the variable X receives the value3

C.

the variable X receives the value of Y less 3

D.

an error message has occured due to type mismatch

Correct answer is C

No explanation has been provided for this answer.