Week 5
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Questions and Answers

What is the main purpose of intrusion prevention?

  • Taking corrective actions after intrusion detection
  • Completing restoration of operations to a normal state
  • Identifying the source and method of intrusion
  • Detering an intrusion attempt (correct)

Which term describes the actions an organization undertakes when an intrusion event is detected?

  • Intrusion prevention
  • Intrusion detection
  • Intrusion reaction (correct)
  • Intrusion correction

What does intrusion correction aim to achieve?

  • Preventing intrusions from occurring
  • Restoring operations to a normal state (correct)
  • Detering future intrusions
  • Identifying the source of intrusion

Which of the following is NOT a learning objective related to intrusion detection and prevention systems?

<p>Explaining managerial controls importance (B)</p> Signup and view all the answers

How are advanced technologies utilized in enhancing information security?

<p>By enhancing the security of information assets (D)</p> Signup and view all the answers

What distinguishes intrusion prevention from intrusion reaction?

<p>Intrusion prevention deters intrusions, while intrusion reaction involves restoration. (C)</p> Signup and view all the answers

What type of detection method collects statistical summaries by observing normal traffic?

<p>Anomaly-based detection (C)</p> Signup and view all the answers

Which detection method can better detect specialized, multisession attacks?

<p>Stateful protocol analysis (D)</p> Signup and view all the answers

Which detection method is most likely to generate many false positives?

<p>Anomaly-based detection (B)</p> Signup and view all the answers

Which detection method involves reviewing log files generated by servers and network devices?

<p>Log file monitors (B)</p> Signup and view all the answers

Which detection method requires much more processing capacity than others?

<p>Anomaly-based detection (A)</p> Signup and view all the answers

Which detection method may fail to detect intrusion unless the protocol fundamentally behaves abnormally?

<p>Stateful protocol analysis (C)</p> Signup and view all the answers

What is the purpose of the confidence value associated with an IDS?

<p>To minimize the number of false positives (A)</p> Signup and view all the answers

How does evasion impact IDPS technologies?

<p>Alters the appearance of malicious activity without changing its effect (B)</p> Signup and view all the answers

What is a false attack stimulus in the context of IDS testing scenarios?

<p>An event that triggers alarms but is not an actual attack (C)</p> Signup and view all the answers

What does a false negative indicate in the context of an IDS system?

<p>A failure to identify and respond to an active attack (A)</p> Signup and view all the answers

How does an organization's past performance measurements influence the confidence value in an IDS?

<p>By providing a basis for trust in the IDS's alert accuracy (B)</p> Signup and view all the answers

What role does encoding text characters play in evasion techniques against IDPS monitoring?

<p>Helps in preventing the detection of attacks by IDPSs (C)</p> Signup and view all the answers

What is a characteristic of active IDPS response?

<p>Modifying the network environment in response to the intrusion (C)</p> Signup and view all the answers

What is a failsafe feature that protects an IDPS from being circumvented?

<p>Modifying the network environment (A)</p> Signup and view all the answers

In terms of IDPS response behavior, what does passive response primarily involve?

<p>Reporting collected information for administrator action (C)</p> Signup and view all the answers

What should be considered when selecting IDPS approaches and products?

<p>The scalability of the product for the environment (A)</p> Signup and view all the answers

Which factor influences IDPS response to external stimulation?

<p>Collection of additional information about intrusions (A)</p> Signup and view all the answers

What aspect should be considered in relation to organizational requirements when selecting IDPS approaches?

<p>Resource constraints within the organization (D)</p> Signup and view all the answers

What is the key difference between fully distributed and partially distributed IDPS control?

<p>Location of control functions (B)</p> Signup and view all the answers

How does the partially distributed IDPS control approach benefit organizations?

<p>Enables detection of widespread attacks (D)</p> Signup and view all the answers

What is a crucial consideration when deploying components of an IDPS system?

<p>Minimizing the impact on system performance (C)</p> Signup and view all the answers

Why is selecting the right deployment strategy for an IDPS critical?

<p>To meet the organization's security requirements with minimal impact (C)</p> Signup and view all the answers

Which scenario best describes a situation where NIDPS and HIDPS are used together?

<p>NIDPS covering internal network systems, HIDPS covering external systems (C)</p> Signup and view all the answers

What feature makes fully distributed IDPS control different from partially distributed control?

<p>Location of control functions (C)</p> Signup and view all the answers
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