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Question 973 - CISA discussion

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Which of the following provides the MOST protection against emerging threats?

A.
Demilitarized zone (DMZ)
Answers
A.
Demilitarized zone (DMZ)
B.
Heuristic intrusion detection system (IDS)
Answers
B.
Heuristic intrusion detection system (IDS)
C.
Real-time updating of antivirus software
Answers
C.
Real-time updating of antivirus software
D.
Signature-based intrusion detection system (IDS)
Answers
D.
Signature-based intrusion detection system (IDS)
Suggested answer: B

Explanation:

A heuristic intrusion detection system (IDS) provides the most protection against emerging threats, as it uses behavioral analysis and anomaly detection to identify unknown or zero-day attacks. A heuristic IDS can adapt to changing patterns and learn from previous incidents, making it more effective than a signature-based IDS, which relies on predefined rules and signatures to detect known attacks. A demilitarized zone (DMZ) is a network segment that separates the internal network from the external network, and it can provide some protection against external threats, but not against internal or emerging threats.Real-time updating of antivirus software is important to protect against malware, but it may not be sufficient to prevent new or sophisticated attacks that exploit unknown vulnerabilities.Reference:CISA Review Manual (Digital Version)1, page 452-453.

asked 18/09/2024
David Codrington
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