WAEC Past Questions and Answers - Page 2094

10,466.

A relational database model is designed according to set of rules known as

A.

Normalization

B.

Isolation

C.

Grouping

D.

Enumeration

Correct answer is A

No explanation has been provided for this answer.

10,467.

The following are attributes of computer virus except the ability to

A.

Modify other files

B.

Replicate itself in order to spread to other files and system

C.

Execute without the user's approval

D.

Warn the user before execution

Correct answer is D

No explanation has been provided for this answer.

10,468.

Computer virus is not transmitted through

A.

Formatting of documents

B.

Email

C.

External storage device

D.

Internet

Correct answer is A

No explanation has been provided for this answer.

10,469.

The computer professional responsible for designing and maintaining a database is called database

A.

Programmer

B.

Operator

C.

Instructor

D.

Administrator

Correct answer is D

No explanation has been provided for this answer.

10,470.

Precautionary measures on computer do not include

A.

Handling all files with care

B.

Giving access to unauthorized persons into the computer room

C.

Avoiding smoking in the computer room

D.

Avoiding dirts and dust in the computer room

Correct answer is B

No explanation has been provided for this answer.