Which detection methodology is used by standard antivirus tools to flag known malware files by matching their unique file hash codes against a local index directory? MCQ with Answer and Explanation

Which detection methodology is used by standard antivirus tools to flag known malware files by matching their unique file hash codes against a local index directory?
A. Behavioral Monitoring
B. Sandbox Isolation Monitoring
C. Signature-based Detection
D. Heuristic Analysis
Answer: Option C
Solution (By JKSSB Mock Tests)
Signature-based engines scan storage objects looking for byte patterns or static cryptographic hashes known to correspond to established malware databases.

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Practice More Cyber Security Questions

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Which of the following is a characteristic of a Trojan Horse?
A. It disguises itself as a legitimate program
B. It is always harmless
C. It replicates itself without user intervention
D. It encrypts files for ransom

Correct Answer: Option A


Explanation:
A Trojan Horse is a type of malware that appears to be a legitimate program but contains malicious code, tricking users into installing it.

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Question #2
What is the purpose of a digital certificate?
A. To verify the identity of an entity in a digital communication
B. To speed up data transmission
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Correct Answer: Option A


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A digital certificate is an electronic document that uses a digital signature to bind a public key with an identity, verifying the owner's authenticity in online communications.

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Which of the following is a common technique used in social engineering attacks?
A. Using a firewall
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Correct Answer: Option B


Explanation:
Pretexting is a form of social engineering where an attacker creates a fabricated scenario (pretext) to steal information or gain access to systems.

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