Which form of malicious software can travel across network links to infect other network devices without needing a human user to copy or share an infected file? MCQ with Answer and Explanation

Which form of malicious software can travel across network links to infect other network devices without needing a human user to copy or share an infected file?
A. Macro Virus
B. Computer Worm
C. Keylogger Module
D. Trojan Horse
Answer: Option B
Solution (By JKSSB Mock Tests)
Worms are self-contained, self-replicating malware strains that exploit network vulnerabilities to spread autonomously among connected devices.

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Practice More Cyber Security Questions

Question #1
Which of the following is a type of malware that disguises itself as legitimate software to trick users?
A. Virus
B. Ransomware
C. Trojan Horse
D. Worm

Correct Answer: Option C


Explanation:
A Trojan Horse is a type of malware that masquerades as a legitimate program to deceive users into installing it.

This question belongs to: Computer Cyber Security
Question #2
A security infrastructure strategy where multiple independent layers of security controls—such as firewalls, MFA, encryption, and awareness training—are deployed across an enterprise is:
A. Zero Trust Model
B. Stateful Boundary Control
C. Least Privilege Access
D. Defense in Depth

Correct Answer: Option D


Explanation:
Defense in Depth combines technical, physical, and administrative security layers to build redundant protection boundaries and avoid single points of failure.

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Question #3
Which of the following is a method to prevent SQL injection attacks?
A. Installing antivirus
B. Using strong passwords
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D. Using parameterized queries

Correct Answer: Option D


Explanation:
Parameterized queries are a programming technique that prevents SQL injection by treating user input as data, not as part of the SQL command.

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