Waec Data Processing 2015 Past Questions and Answers

Question 1:

• WAEC 2015

Which of the following persons invented the punch card machine?

A. Blaise Pascal
B. Gottfried Leibniz
C. J. Prosper Eckert
D. Dr. Herman Hollerith

Question 2:

• WAEC 2015

Convert 478 to its binary equivalent.

A. 100111\(_2\)
B. 110011\(_2\)
C. 10001\(_2\)
D. 1111011\(_2\)

Question 3:

• WAEC 2015

The operation of checking input data against specified criteria is referred to as.

A. Data verification
B. Data validation
C. Data cross check
D. Data control

Question 4:

• WAEC 2015

Which of the following is not a source of data collection.

A. Observation
B. Interview
C. Questionnaire
D. Classification

Question 5:

• WAEC 2015

Which of the following is true about digital computers.

A. They consist of magnetic core memory.
B. They understand data as a continuous measurement of a physical quantity.
C. They represent numbers through a string of binary digits.
D. They are mainly used for scientific purposes.