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

The selection of packet capture as the correct answer is grounded in its capability to provide detailed information about network traffic and events as they occur in real-time. Packet capture records data packets that traverse a network, giving security professionals valuable insights into the actions and communications happening between systems. This granularity allows for substantial auditability, as it captures every interaction, including timestamps, protocols used, source and destination addresses, and payload data.

With these features, packet captures are essential for investigative purposes, enabling forensic analysis of security incidents or suspicious activities. By examining the captured data, analysts can trace the steps taken during an event, identify potentially malicious traffic, and understand the sequence of actions leading to an incident. This level of detail is crucial for documenting the events and supporting a thorough investigation.

Other data sources like storage files, interference, and database tables might provide some level of information or logs but generally lack the comprehensive detail and real-time assessment capability that packet captures offer in terms of tracking and tracing network-related events.