Question: In 3GPP Lawful Interception, when starting to intercept a target with at least one active PDP (Packet Data Protocol) context, what happens if multiple PDP contexts are open?
Option 1: Only one event record is generated, combining all PDP context information.
Option 2: An event record is generated for each active PDP context.
Option 3: No event records are sent until all PDP contexts are closed.
Option 4: The system waits for a "Start of interception with mobile station attached" message before generating any event records.
Explanation: According to the lawful interception architecture, when initiating interception on a target with multiple active PDP contexts, the system generates separate event records for each context. This ensures detailed tracking and reporting for each PDP context, enhancing the granularity of intercepted data. This approach is crucial for comprehensive monitoring as required by lawful interception protocols in telecom networks.