JAMB Computer Science Past Questions & Answers - Page 39

191.

The illegal access to a network or computer system is___________

A.

security

B.

cracking

C.

virus

D.

piracy

Correct answer is B

Cracking is trying to get into computer systems in order to steal, corrupt or illegitimately view data

192.

A display listing of program options which users can select is called?

A.

icons

B.

options

C.

selection

D.

menu

Correct answer is D

The menu consists of various programs users use

193.

A permanent memory, which has data and instruction to start up the computer and does not erase data after power off.

A.

network interface card

B.

CPU

C.

RAM

D.

ROM

Correct answer is D

The read only memory does not erase data after power off because, it is a non volatile memory

194.

The Internet is an example of which computer network?

A.

LAN

B.

MAN

C.

CAN

D.

WAN

Correct answer is D

Mesh network topologies are typical of the internet, and certain wide area networks (WANs)

195.

What does LAN stand for?

A.

Land area network

B.

Local arrangement network

C.

Legal alternative network

D.

Local area network

Correct answer is D

A local area network (LAN) is a collection of devices connected together in one physical location, such as a building, office, or home. A LAN can be small or large, ranging from a home network with one user to an enterprise network with thousands of users and devices in an office or school.
Regardless of size, a LAN's single defining characteristic is that it connects devices that are in a single, limited area.