JAMB Computer Science Past Questions & Answers - Page 28

136.

Which of the following is not a method of filing

A.

Random

B.

Sequential

C.

Serial

D.

Geographical

Correct answer is D

Geographical method of computer filing doesn't exist

137.

Which process is used by large retailers to study trends?

A.

Data mining

B.

Data selection

C.

Data conversion

D.

Pos

Correct answer is A

Data mining is used to study trends by large retailers

138.

Which of the following is not a stage of system development cycle?

A.

Design

B.

Test running

C.

Implementation

D.

Observation

Correct answer is D

Observation isn't a stage of system development cycle

139.

Which part of a processor contains the hard ware necessary to perform all the operations required by a computer?

A.

Data path

B.

Controller

C.

Registers

D.

Cache

Correct answer is A

The data path contains all hardware necessary to perform every operation. A controller tells the data path what needs to be done

140.

Computers are used majorly at offices for ____________

A.

Recreational purposes

B.

Research purposes

C.

Storage purpose

D.

Security purposes

Correct answer is C

In offices, computers are majorly used to store files and other confidential