JAMB Computer Science Past Questions & Answers - Page 15

71.

Which of these criteria is not important while classifying files ?

A.

Organization method

B.

Nature of content in the file

C.

Size of the file

D.

Storage medium

Correct answer is D

While classifying files, the storage medium is not a criterion. The classification of files is based on the nature of the content in the file, the organization method, and the size of the file. The storage medium is where the file is stored, which does not affect the classification of the file

72.

What is the shortcut for creating a new document ?

A.

Ctrl + N

B.

Ctrl + O

C.

Ctrl + Q

D.

Ctrl + M

Correct answer is A

The shortcut for creating a new document is Ctrl + N. This is a standard shortcut across many applications and operating systems

73.

Anti-virus software is an example of ?

A.

Utility programs

B.

Operating systems

C.

Application software

D.

Translators

Correct answer is A

software utilities is a type of computer system software also referred to as service program, tool, service routine, or utility routine, they help to analyze, configure, optimize or maintain a computer

74.

The type of database in which the data are connected in different files by using common data elements or a key field is ?

A.

Relational database

B.

Network database

C.

Hierarchical database

D.

Object-oriented database

Correct answer is A

Relational database connects data in different files by using a common data elements or a key field

75.

Which of these commands will reboot the computer ?

A.

Ctrl + Alt + Del

B.

Ctrl + Del

C.

Ctrl + Alt + C

D.

Ctrl + Alt

Correct answer is A

The command 'Ctrl + Alt + Del' is a common PC shortcut that restarts the computer. It is also known as 'Three-finger salute'. This command is used to bring up the Task Manager or the Windows Security options (including the option to restart or shut down) in Windows operating systems