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Chapter 8 (Using Intrusion Detection Systems) Exam with Answers 2024/2025 $14.99   Add to cart

Exam (elaborations)

Chapter 8 (Using Intrusion Detection Systems) Exam with Answers 2024/2025

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Intrusion Detection Systems (IDS) Answer: they are responsible for monitoring activity on a system or network and then logging or notifying the admin of any suspicious activity Analysis Methods Answer: - Signature-Based Systems - Anomaly-Based Systems - Heuristic Signature-B...

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  • August 30, 2024
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  • 2024/2025
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Chapter 8 (Using Intrusion Detection
Systems) Exam with Answers 2024/2025

Intrusion Detection Systems (IDS) Answer: they are responsible for monitoring activity on a system
or network and then logging or notifying the admin of any suspicious activity



Analysis Methods Answer: - Signature-Based Systems

- Anomaly-Based Systems

- Heuristic



Signature-Based Systems Answer: - determines suspicious activity based on the signatures in a file
that you would need to program or keep up to date

- when the IDS captures behaviors it compares the activity against the signature database and if it
matches it sends out an intrusion notification

- it has few false positives (false alarms)



Anomaly-Based Systems Answer: - determines suspicious activity based on the activity being
abnormal

- it has a baseline for activity, which mean normal activity, and it considers anything outside of that
normal to be suspicious

- also known as behavior-based anomaly

- it has a large number of false positives



Heuristic Answer: - analysis monitors the activity and knows what is suspicious based on past events

- the goal is to detect new viruses that are unknown

- the software usually runs the program in a virtual machine

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