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C. Fill in the blanks using the words given below:
Hints
antivirus, firewall, malware, trojan horse
1. Malicious software is also known as ................................ .
2. A set of programs that identify and remove malware is known as .......................... software.
3. A ................................ acts like a gatekeeper and prevents unauthorised access to a computer
network.
4. The purpose of a ................................ is to conceal itself inside software that seems legitimate.
Let's Do It Section B (Subjective)
A. Short answer type questions.
1. What is a trojan?
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2. What is the use of an antivirus program?
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3. What is a boot sector virus?
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4. What does MBR stand for?
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B. Long answer type questions.
1. What is malware? How does it affect your computer? Mention some types of malware.
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2. Differentiate between virus and worm.
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3. How do you know your computer has a virus?
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Computer Virus 37

