IDS

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Questions and Answers

What is a primary role of an Intrusion Detection System (IDS) in identifying threats?

To prevent all types of intrusions automatically
To identify abnormal traffic patterns indicating potential threats (correct)
To solely rely on known signatures of past attacks
To completely eliminate false positives during monitoring

How can an IDS contribute to identifying vulnerabilities?

By substituting traditional firewalls
By conducting regular software updates
By permanently blocking all intrusion attempts
By monitoring attempts to exploit known weaknesses (correct)

What is a significant limitation of an IDS?

It may generate false positives that require manual verification (correct)
It always provides immediate resolution to detected threats
It can create a comprehensive protection against all threats
It is capable of stopping intrusions before they occur

In which way can information from an IDS enhance overall network security?

By integrating with firewalls and IPS for a combined defense (D) Signup and view all the answers

What does the performance metrics gathering from an IDS help with?

It helps in refining security policies and network design (D) Signup and view all the answers

What does the after-the-fact notification capability of an IDS imply?

It alerts organizations about intrusions post-occurrence (D) Signup and view all the answers

What is the primary difference between an intrusion detection system (IDS) and an intrusion prevention system (IPS)?

An IDS generates alerts for suspicious activities while an IPS takes action to prevent when necessary. (B) Signup and view all the answers

Which type of intrusion detection system is designed specifically to monitor network-wide traffic?

Network Intrusion Detection System (NIDS) (B) Signup and view all the answers

What type of detection method examines trends and anomalies in network traffic to identify potential threats?

Anomaly detection (C) Signup and view all the answers

Which action does a Log File Monitor IDS (LFM IDS) NOT typically perform?

Analyze network packet headers (C) Signup and view all the answers

What specific type of activity would a Host Intrusion Detection System (HIDS) monitor?

File integrity changes on the host system (B) Signup and view all the answers

Which of the following is a characteristic feature of file-checking mechanisms in an IDS?

Checks for new or unrecognized files and processes (A) Signup and view all the answers

What type of IDS would primarily alert on connections made to known malicious sites?

Network Intrusion Detection System (NIDS) (D) Signup and view all the answers

Which scenario is unlikely to generate an alert from an IDS?

A system reboot initiated by a user (C) Signup and view all the answers

Which role of the IDS involves detecting unauthorized access attempts?

Analyze network traffic (C) Signup and view all the answers

What is the primary limitation of signature-based intrusion detection systems?

They can only detect known attacks. (A) Signup and view all the answers

Which type of intrusion detection system is known to analyze traffic against a baseline profile?

Anomaly-based IDS (D) Signup and view all the answers

What occurs during a false positive alert in an IDS?

A legitimate activity is flagged as an attack. (B) Signup and view all the answers

What characteristic of protocol-based intrusion detection systems improves their effectiveness against zero-day exploits?

They analyze messages for known good behavior. (A) Signup and view all the answers

What is an important function of the sensors in an Intrusion Detection System?

To collect data from the network or host. (C) Signup and view all the answers

What type of IDS is primarily concerned with detecting abnormal behavior within individual machines?

Host Intrusion Detection Systems (HIDS) (D) Signup and view all the answers

Which of the following is NOT a common outcome of an IDS alert?

False flag (D) Signup and view all the answers

Why is it important for an anomaly-based IDS to frequently update baseline profiles?

To minimize the risk of false negatives. (D) Signup and view all the answers

Which of these best describes the role of the user interface in an IDS?

To allow administrators to manage alerts and responses. (C) Signup and view all the answers

What is a potential disadvantage of using anomaly-based detection methods?

They can lead to a high rate of false positives. (B) Signup and view all the answers

Flashcards

Intrusion Detection System (IDS)

A software or hardware program that monitors network traffic for suspicious activity or known threats.

Network Intrusion Detection System (NIDS)

An IDS that monitors network traffic for malicious or damaging behavior.