What is the difference between a virus and a worm? MCQ with Answer and Explanation

What is the difference between a virus and a worm?
A. A worm requires user action to spread, while a virus does not
B. There is no difference
C. A virus is always more harmful than a worm
D. A virus requires a host program to spread, while a worm is self-contained
Answer: Option D
Solution (By JKSSB Mock Tests)
A virus attaches itself to a host program or file to replicate, while a worm is a standalone program that replicates and spreads on its own.

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Practice More Cyber Security Questions

Question #1
What social engineering technique involves an attacker making up an elaborate scenario—such as pretending to be an internal IT technician—to trick an employee into giving up account credentials?
A. Baiting
B. Pretexting
C. Pharming
D. Tailgating

Correct Answer: Option B


Explanation:
Pretexting is the act of creating an invented scenario (the pretext) to persuade a targeted victim to release information or perform an action they wouldn't normally do.

This question belongs to: Computer Cyber Security
Question #2
Which of the following is a type of cyber attack that targets a specific individual with personalized information?
A. Phishing
B. Vishing
C. Whaling
D. Spear phishing

Correct Answer: Option D


Explanation:
Spear phishing is a targeted phishing attack that uses personalized information to deceive a specific individual, often appearing highly credible.

This question belongs to: Computer Cyber Security
Question #3
A specialized tool that not only detects active network intrusions but also automatically reconfigures firewall rules to block the attacker’s source IP address immediately is a/an:
A. Proxy Server Gateway
B. Intrusion Detection System (IDS)
C. Cryptographic Hash Verifier
D. Intrusion Prevention System (IPS)

Correct Answer: Option D


Explanation:
An IPS builds on standard IDS capabilities by proactively blocking or neutralizing detected threats in real time.

This question belongs to: Computer Cyber Security