WAEC Computer Science Past Questions & Answers - Page 34

166.

The process of testing the logic of programs to ensure they give correct result is known as?

A.

algorithm

B.

desk checking

C.

flowcharting

D.

table checking

Correct answer is C

No explanation has been provided for this answer.

167.

The command line prompt of MS-DOS operating system is represented as?

A.

C:>

B.

C:\

C.

C:\>

D.

C\:>

Correct answer is B

No explanation has been provided for this answer.

168.

The algebraic equation for the AND gate with input variables A and B is? 

A.

X = A.B

B.

X =A/B

C.

X= A-B

D.

X = A+B

Correct answer is A

No explanation has been provided for this answer.

169.

The conversion of readable data to unreadable codes in order to prevent unauthorised access is known as?

A.

authentication

B.

encryption

C.

encoding

D.

decryption

Correct answer is B

No explanation has been provided for this answer.

170.

A row in a database table is referred to as?

A.

attribute

B.

data item

C.

field

D.

record

Correct answer is D

No explanation has been provided for this answer.