JAMB Computer Science Past Questions & Answers - Page 30

146.

Why is the base 10 system unique?

A.

There are only 10 fingers to every human

B.

There are only 10 one digit numbers

C.

The number 10 has just 2 factors

D.

no specific reason

Correct answer is A

The base 10 system of counting has been passed from generations to generations. This because, we learn to count with our fingers at young age

147.

Which number base system is used by low level languages

A.

Duodecimal

B.

Binary

C.

Hexadecimal

D.

Decimal

Correct answer is B

binary base system is used by low level languages to interact with the computer

148.

What type of errors occurs when the program is asked to implement an impossible task such as dividing a number by zero?

A.

Syntax error

B.

Runtime error

C.

Logical error

D.

Arithmetic error

Correct answer is B

Runtime error. This type of error occurs when the program is asked to perform an impossible task or a task that has not been included in the program written

149.

What is debugging?

A.

Preventing bugs from getting to the computer

B.

inserting errors into the program

C.

finding and removing errors from a computer

D.

finding and removing errors from a program

Correct answer is D

Debugging is the process of finding and removing errors from a program

150.

The major function of a Database management system is _______________

A.

Virus detection

B.

Cyber security

C.

Manipulation of data in a data base

D.

Store large data

Correct answer is C

The DBMS performs the function of manipulating the data in a data base, as well as managing the database structure