Question 2
(a)(i)Define computer virus.
(ii)List three types of computer virus.
(b)State five sources of computer network security breach.
Observation
The expected answers were:
(a) Computer file is the smallest meaningful unit of data representation within a computer.
OR
It holds the essential information for the continued operation of the organization, such as customers, stocks, employees, etc.
OR
It contains records that are accessed regularly to provide information.
(b) (i) -Movement file
-It provides input to update the master file.
(ii) -It is stable and permanent in nature
-It is data used for reference purposes.
(c) (i) Effects of file insecurity
- Result to file loss
- Data unreliability
- Data corruption
(ii) File security methods:
- Use of backups
- Use of anti-virus
- Use of passwords
- Proper label of storage devices
- File management