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A computer virus is a malicious piece of code or program designed to corrupt data or
program files stored on a computer system.
Malware is a malicious program designed to damage or perform unwanted actions on a
computer.
The different types of malware are the worm, trojan horse, spyware, ransomware, rootkit
and backdoor.
Antivirus software is a set of programs designed to identify, prevent, and remove malware
from your computer.
A firewall is a software or hardware-based network security system that controls the
incoming and outgoing network traffic according to a set of predefined rules.
Tech Trivia Section A (Objective)
A. Tick ( ) the correct option.
1. Which type of virus infects files with extensions like .exe and .com?
a. Macro Virus b. Program File Virus
c. E-mail Virus d. Boot Sector Virus
2. What does the acronym VIRUS stand for?
a. Vital Information Resources Under Sieze
b. Virtual Information Recorded Under System
c. Vital Internet Resources Under Scan
d. Virus Infects Resource Under System
3. Which of the following is an example of a Boot Sector Virus?
a. Melissa b. Stoned
c. Bablas d. Cascade
4. How does an email virus usually spread?
a. Through file downloads b. Via infected CDs
c. As email attachments d. Through local network
5. What is the primary function of a firewall in a computer network?
a. Detect and remove viruses
b. To block unauthorised access and control network traffic
c. Encrypt data on a computer
d. Replicate itself without human intervention
Computer Virus 35

