Question: In 3GPP PCC (Policy and Charging Control), when handling errors related to QoS (Quality of Service) Control Rules, which AVP (Attribute-Value Pair) is specifically used to report the affected QoS rules?
Option 1: Charging-Rule-Report AVP
Option 2: QoS-Parameter-Report AVP
Option 3: Policy-Rule-Error AVP
Option 4: QoS-Rule-Report AVP
Explanation: According to the specified error handling behavior for QoS Control Rules in PCC, the QoS-Rule-Report AVP is utilized to report any affected QoS rules. This distinguishes it from error handling for Charging Rules, which would use a different AVP. The correct choice, QoS-Rule-Report AVP, highlights the importance of specific reporting mechanisms for different types of rules in telecom networks, ensuring accurate troubleshooting and management of Quality of Service parameters.