Question: What is the support requirement for Fully Qualified Partial CDRs (FQPC) versus Reduced Partial CDRs (RPC) on the Ga interface in an Evolved Packet Core (EPC) network?
Option 1: Both FQPC and RPC have optional support.
Option 2: FQPC is optional, while RPC is mandatory.
Option 3: Both FQPC and RPC are mandatorily supported.
Option 4: FQPC support is mandatory, while RPC support is optional.
Explanation: In EPC networks, concerning the Ga interface for charging management, FQPC must be supported by all compliant implementations (mandatory), ensuring comprehensive charging data availability. In contrast, RPC is an optional feature, offering flexibility based on network operators' needs or system constraints.