Cisco Certified Internetwork Expert (CCIE) Practice Test

Which component is crucial for forensic examination in network security?

1. Mobility Services Engine

2. Packet-Capture Functions

3. Prime Infrastructure

4. Wireless Security Module

The correct answer is: Packet-Capture Functions

The significance of packet-capture functions in forensic examination within network security cannot be overstated. These functions are essential because they allow security professionals to record and analyze data packets transmitted across a network. In the event of a security incident or breach, the ability to examine these packets helps in understanding the nature of the attack, the vector it utilized, and the information that may have been compromised. Packet captures provide a detailed view of network traffic, enabling investigators to identify malicious patterns, reconstruct attack sequences, and gather evidence that can be used in both remediation efforts and legal proceedings. They help in detecting anomalies, uncovering hidden threats, and providing insights into the overall security posture of the network. While other options have their roles in network management and security, they do not specifically pertain to the forensic aspects as closely as packet-capture functions. Mobility Services Engines focus on managing mobile devices in wireless networks, Prime Infrastructure is centered around network management and application performance, and Wireless Security Modules primarily provide security features for wireless networks. Their functions are more oriented towards operational efficiency and security management rather than providing the detailed forensic data necessary for thorough investigations.