JAMB Computer Science Past Questions & Answers - Page 20

96.

_______ is the process of finding errors and fixing them within a program

A.

Compiling

B.

Executing

C.

Debugging

D.

Scanning

Correct answer is C

Debugging is the process of detecting and removing of existing and potential errors (also called as 'bugs') in a software code that can cause it to behave unexpectedly or crash. To prevent incorrect operation of a software or system, debugging is used to find and resolve bugs or defects

97.

Which of these is not a job of the operating system

A.

Stopping unauthorised users accessing files that do not belong to them

B.

Handling HTTP requests for Web pages

C.

Allocating memory to programs that are running on the computer

D.

none of the above

Correct answer is C

The operating system doesn't handle HTTP requests for Web pages because it controls the computer system

98.

_________ are programmes that affect the effectiveness of a computer system

A.

bugs

B.

virus

C.

antivirus

D.

none of the above

Correct answer is B

Virus is a piece of code which is capable of copying itself and typically has a detrimental effect, such as corrupting the system or destroying data

99.

What does ICT stand for?

A.

information and community technology

B.

Internet and communication technology

C.

information and communication technology

D.

Internet access communication technologies

Correct answer is C

ICT means Information and Communications Technology

100.

Computers that are portable and convenient for users who travel are known as _________________

A.

Super computers

B.

Laptops

C.

Mini computers

D.

File servers

Correct answer is C

A laptop computer is a personal computer for mobile use. It has most of the same components as a desktop computer, including a display, a keyboard, a pointing device such as a touchpad (also known as a trackpad) and/or a pointing stick, and speakers into a single unit. A laptop is powered by mains electricity via an AC adapter, and can be used away from an outlet using a rechargeable battery. Laptops are also sometimes called notebook computers, notebooks, ultrabooks or netbooks. This could also be referred to as portable computers as they are easy to carry around