Which type of antivirus detection strategy analyzes an unverified program's instruction codes for malicious traits, helping it flag new threats even if the file hash is missing from standard databases? MCQ with Answer and Explanation

Question
Which type of antivirus detection strategy analyzes an unverified program's instruction codes for malicious traits, helping it flag new threats even if the file hash is missing from standard databases?
A. Cryptographic Indexing
B. Static Signature Masking
C. Database Static Lookup
D. Heuristic Analysis / Behavioral Monitoring
Answer: Option D
Solution (By JKSSB Mock Tests)
Heuristic analysis checks software patterns and rules of behavior to detect unknown zero-day malware variants that lack established signature profiles.
This question belongs to: Computer Cyber Security
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Question #1
Which of the following is a common technique used in social engineering attacks?
A. Pretexting
B. Installing a virus
C. Encrypting data
D. Using a firewall
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Correct Answer: Option A

Explanation:
Pretexting is a form of social engineering where an attacker creates a fabricated scenario (pretext) to steal information or gain access to systems.
This question belongs to: Computer Cyber Security
Question #2
What is the function of a network intrusion detection system (IDS)?
A. To provide backup services
B. To encrypt all data on the network
C. To prevent all unauthorized access
D. To monitor network traffic for suspicious activity and alert administrators
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Correct Answer: Option D

Explanation:
An IDS monitors network traffic for malicious activities or policy violations and generates alerts to notify administrators.
This question belongs to: Computer Cyber Security
Question #3
Which firewall asset operates explicitly at Layer 7 of the OSI model, proxying web requests to filter input values and block application attacks?
A. Circuit Level Gateway
B. Stateful Inspection Monitor
C. Application Layer Firewall
D. Packet Filtering Gateway
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Correct Answer: Option C

Explanation:
Application firewalls filter commands at Layer 7, inspecting protocol payloads to protect web servers from exploitation.
This question belongs to: Computer Cyber Security
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