Waec Data Processing Paper 2, Essay May/June 2014 Questions

Waec Data Processing Paper 2, Essay May/June 2014 Questions

1.
a.
i. What is a computer virus?
ii.Mention three sources of computer viruses
iii. List two ways of preventing computer virus infection.

b. State one function each of the following units of a computer:
i. input unit;
ii. memory unit.

c. Give one example each of the following:
i. Input unit;
ii. Memory unit.

2.
a.
i. Give two examples of a word processing application.
ii. Distinguish between the “Save” and “Save As” commands

b. State the function of the following key combination:
i. Ctrl + shift + +
ii. Ctrl + E

c. A college secretary who is typing the school’s examination questions sits all day in front of a Cathode ray Tube (CRT) monitor which is positioned below her eye level.
i. Mention two measures that the secretary should take in order not to have a medical problem.
ii. Identify two health related challenges that the secretary is likely to face.


3.
a. State one difference between a computer professional and a computer user.
b. (i) List four Computer Professionals.
(ii) State one function each of the professionals listed in 3(b) (i) above.
c. Mention four safety measures to be taken when working in a computer laboratory.


4.
a. A general hospital decides to computerize the records in all its departments.
i.State one database management system that can be used for this project
ii.List two ways of preventing unauthorized access to the stored data
ii. List two advantages of networking all the computers in the various departments of the hospital.
b. State the type of network that can be implemented in such a hospital.
c. State one difference between a graphical user interface and a command line interface.