WAEC Computer Science Past Questions & Answers - Page 12

56.

Which of the following statements best describes sequential file organization?

A.

Records are arranged in no particular order

B.

Records are directly addressed to the key value

C.

Records are sorted according to a key field

D.

Records are used as index to access the database

Correct answer is C

No explanation has been provided for this answer.

57.

Which of the following options best shows the arrangement of file structure?   

I File

ll. Field

III. Character

IV, Record

A.

III, II, I and IV

B.

II, III, I and IV

C.

IlI, II, IV and I

D.

II, III, IV and I

Correct answer is A

No explanation has been provided for this answer.

58.

Which of the following is not a criterion files? 

A.

Nature of content

B.

Organizational method

C.

Storage medium

D.

Type of data

Correct answer is C

No explanation has been provided for this answer.

59.

The EBCDIC coding system was developed on?

A.

IBM mainframe computers

B.

HP mainframe and minicomputers

C.

Dell mainframe computer

D.

Apple mainframe computers

Correct answer is C

No explanation has been provided for this answer.

60.

The decimal fraction 0.9375 converts to binary?

A.

0.0111

B.

0.1011

C.

0.1111

D.

0.1001

Correct answer is C

No explanation has been provided for this answer.