Question: Which two methods can be used to activate the gathering of client Quality of Experience (QoE) metrics for an MBMS Server that supports this feature, according to 3GPP standards?
Option 1: SDP (Session Description Protocol) and OMA-DM (Open Mobile Alliance Device Management)
Option 2: HTTP/2 (Hypertext Transfer Protocol version 2) and RTP (Real-time Transport Protocol)
Option 3: RTCP (RTP Control Protocol) and SIP (Session Initiation Protocol)
Option 4: DNS (Domain Name System) and TLS (Transport Layer Security)
Explanation: The correct answer is Option 1 because, according to the provided context from 3GPP standards, an MBMS Server that supports QoE metrics can activate their gathering via SDP (as described in specific sub-clauses) or alternatively through OMA-DM. This highlights the flexibility in managing Quality of Experience for Multimedia Broadcast/Multicast Services within telecom networks, impacting how service quality is monitored and potentially enhanced based on client feedback.