Processing math: 100%

WAEC Computer Science Past Questions & Answers - Page 22

106.

Which of the file organization methods can be accessed both randomly and sequentially?

A.

Direct files

B.

Indexed sequential files

C.

Random files

D.

Sequential files

Correct answer is B

No explanation has been provided for this answer.

107.

Effects of file insecurity include the following except?

A.

virus infection

B.

file corruption

C.

encrypted data

D.

data loss

Correct answer is C

No explanation has been provided for this answer.

108.

The following actions are sources of breaches in computing except?

A.

carelessness

B.

hackers' threat

C.

piracy

D.

viruses

Correct answer is A

No explanation has been provided for this answer.

109.

In BCD encoding system, 25, will be represented as? 

A.

01100101

B.

01010110

C.

00100101

D.

0101001

Correct answer is C

No explanation has been provided for this answer.

110.

Multiply 1012 by 112       

 

A.

10012

B.

10112

C.

11102

D.

11112

Correct answer is D

No explanation has been provided for this answer.