Which data source provides auditability and traceability for event investigation as well as documentation?

The data source that offers the most significant auditability and traceability for event investigations, as well as thorough documentation, is packet capture. Packet capture involves recording data packets that travel across a network, enabling the analysis of various types of network traffic. This method captures detailed information on protocols, ports, and the specific payloads included within the packets, which serves as a comprehensive record of communications taking place within the network.

When investigating events, especially in the context of security incidents, having access to raw packet data allows analysts to reconstruct sessions and understand the context of the transactions, including any potential anomalies or malicious activities. The granularity of this data supports forensic investigations, allowing for detailed tracking of activities, which is crucial for identifying the root cause of security events.

In contrast to other data sources, the other options do not provide the same level of depth or detail required for effective auditability. For example, storage files may contain important information but lack the real-time monitoring and detailed packet-level insights that packet captures provide. Network interference is a general concept rather than a specific data source and does not aid in traceability or event documentation. Database tables can contain valuable information related to transactions but usually lack the network-level detail necessary for understanding the entire scope of events related