FREE GCIA Intrusion Detection Systems (IDS) and Security Information and Event Management (SIEM) Questions and Answers
What is the primary function of a SIEM system in network security?
SIEM (Security Information and Event Management) systems are designed to collect, aggregate, and analyze log and event data from various sources to provide a comprehensive view of security activities and potential threats.
Which type of analysis involves comparing current network traffic patterns to established baselines to detect anomalies?
Statistical analysis involves comparing current network traffic patterns to established baselines to identify deviations that may indicate anomalies or potential security threats.
Which type of IDS is designed to monitor network traffic and detect malicious activity by analyzing packet data?
A Network-based IDS (NIDS) monitors and analyzes network traffic for signs of malicious activity by examining packets as they travel across the network.
Which log source would provide information about user login attempts and authentication events?
Authentication logs record details about user login attempts and authentication events, including successful and failed logins.
Which of the following is a common method used by IDS systems to reduce false positives?
Applying correlation rules in an IDS helps to combine and analyze data from multiple sources to identify patterns that are more likely to represent real threats, thereby reducing false positives.