Digital Forensic Certification Practice Exam

Which correlation approach leverages behavioral data of computers and users to trigger alerts for anomalies?

1. Time-Based Approach

2. Event Aggregation

3. Bayesian Correlation

4. Route Correlation

The correct answer is: Time-Based Approach

The time-based approach focuses on analyzing the sequence and timing of events occurring within a computer system or user interactions. This method is essential in identifying anomalous activities that deviate from established patterns over a certain timeframe. By monitoring the timing of different events, it can effectively determine when something unusual happens, such as a series of logins at irregular intervals or sudden surges in file access. This approach allows for the detection of potential security threats by correlating behavioral data, which could indicate unauthorized access or other malicious activities. By relying on the timing and occurrence of behaviors, the time-based approach efficiently triggers alerts whenever anomalies are recognized, aiding in rapid response to potential security incidents. In contrast, the other approaches do not focus primarily on behavior-driven data over time. Event aggregation collects and summarizes events, Bayesian correlation uses probability models, and route correlation focuses on network paths or connections, but none of these specifically emphasize the behavioral timing aspect intrinsic to the time-based approach.