Question: In MBMS using FLUTE, what is the requirement for implementing Application Layer FEC schemes in the BM-SC and UE?
Option 1: Both Compact No-Code FEC and Raptor FEC schemes are mandatory to implement by the BM-SC and optional to support by the UE.
Option 2: The Compact No-Code FEC scheme is mandatory for both BM-SC and UE, while the Raptor FEC scheme is optional for both.
Option 3: Both FEC schemes are optional to implement by the BM-SC and mandatory to support by the UE.
Option 4: Neither FEC scheme has implementation requirements specified for either the BM-SC or the UE.
Explanation: This is correct because, according to the specifications, both referenced FEC schemes (Compact No-Code FEC and Raptor FEC) are optional for the BM-SC to implement but must be supported by the UE. This ensures flexibility in network implementation while guaranteeing compatibility with all UEs that support MBMS services.