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Intrusion Detection and Prevention Systems

5 minutes 5 Questions

Intrusion Detection and Prevention Systems (IDPS) are tools used to identify potential security incidents, monitor network or system activities, and prevent unauthorized access or potentially malicious actions. Intrusion detection systems (IDS) primarily focus on detecting unauthorized or malicious…

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CISSP - Intrusion Detection and Prevention Systems Example Questions

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Question 1

A company has a hybrid cloud environment and is concerned about potential intrusion attempts in the cloud infrastructure. Which type of Intrusion Detection and Prevention System (IDPS) is best suited to address this concern?

Correct Answer: Host-based IDPS

A host-based IDPS is best suited to monitor and protect individual systems, including those in cloud environments. Network-based IDPS and other types focus more on the overall network and may not provide the same level of protection and visibility into cloud environments.

Question 2

After completing a network upgrade, the company is regularly experiencing Distributed Denial of Service (DDoS) attacks. Which Intrusion Detection and Prevention System (IDPS) is most effective against DDoS attacks?

Correct Answer: Network-based IDPS

Network-based IDPS is best suited to detect and mitigate Distributed Denial of Service (DDoS) attacks as it monitors network traffic and can detect/block malicious traffic on a larger scale. Host-based IDPS is not designed for large-scale attacks. Signature-based, anomaly-based, and honeynet might be helpful but do not fully address the DDoS event.

Question 3

A large organization with multiple locations detects a sudden increase in unauthorized access attempts. Analysis shows that many of these attempts come from known, compromised locations. Which method can help protect the organization's network from such attacks?

Correct Answer: Implement IP reputation-based blocking

Implementing IP reputation-based blocking allows the organization to block traffic from known, compromised locations and reduce the risk of unauthorized access. Ignoring the attempts or relying solely on firewalls will not provide adequate protection, while host-based or signature-based IDPS only might not target the specific threats in question.

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