JAMB Computer Science Past Questions & Answers - Page 11

51.

The connection between two or more computers to share resources or allow electronic communication is called ?

A.

Connection

B.

Communication

C.

Transfer

D.

Network

Correct answer is D

A network consists of two or more computers that are linked together in order to share resources, exchange files or allow electronic communication

52.

The connection between two or more computers to share resources or allow electronic communication is called ?

A.

Connection

B.

Communication

C.

Transfer

D.

Network

Correct answer is D

A network consists of two or more computers that are linked together in order to share resources, exchange files or allow electronic communication

53.

What type of booting does the computer go through when starting up from a powered down ?

A.

Cold booting

B.

Soft booting

C.

Warm booting

D.

Rebooting

Correct answer is A

Cold booting is when you start a computer from a powered-down, or off, state. This is often referred to as a system restart or a system reset. Warm booting, on the other hand, is restarting the computer while it's powered on. Rebooting and soft booting are general terms for restarting a computer and can refer to either cold or warm booting

54.

What does R stands for in the CRUD acronym ?

A.

Retrieve

B.

Redirect

C.

Read

D.

Relate

Correct answer is C

In the CRUD acronym, R stands for 'Read'. CRUD stands for Create, Read, Update, and Delete. These are the four basic functions of persistent storage in databases

55.

The Output will be a HIGH for any case when one or more inputs are one for a(an)

A.

OR gate

B.

AND gate

C.

NOR gate

D.

NOT gate

Correct answer is A

An OR gate is a digital logic gate that implements logical disjunction - it behaves according to the truth table to the right. A HIGH output (1) results if one or more of the inputs to the gate is HIGH (1). If neither input is high, a LOW output (0) results. In another sense, the function of OR effectively finds the maximum between two binary digits, just as the complementary AND function finds the minimum