WAEC Data Processing Past Questions & Answers - Page 46

226.

The use of Visual Display Unit was a major breakthrough in the

A.

First generation computers

B.

Second generation computers

C.

Third generation computers

D.

Fifth generation computers

Correct answer is C

No explanation has been provided for this answer.

227.

Which of these operations would not improve the performance of a parallel database system?

A.

Building indexes

B.

Deleting unwanted data

C.

Evaluating queries

D.

Storing data across several sites

Correct answer is D

No explanation has been provided for this answer.

228.

Maintaining the value nd content of data is part of data

A.

Coding

B.

Integrity

C.

Secrecy

D.

Security

Correct answer is B

No explanation has been provided for this answer.

229.

Which of the following is not an advantage of file organization?

A.

Faster processing of data input

B.

Postal data retrieval

C.

Prevention of data failure and data loss

D.

Safety of data and information in a storage medium

Correct answer is D

No explanation has been provided for this answer.

230.

What file organization would require that all the five (5) records be read before the 6th record is written?

A.

Direct-access file

B.

Index sequential file

C.

Random access file

D.

Sequential access file

Correct answer is D

No explanation has been provided for this answer.