Question: What is the purpose of the Reflective QoS Attribute (RQA) in a 5G System?
Option 1: To enable the transfer of all traffic carried on a QoS Flow.
Option 2: To indicate that certain traffic is subject to Reflective QoS and enable the transfer of RQI for AN resource corresponding to this QoS Flow.
Option 3: To disable the transfer of RQI for AN resource corresponding to a QoS Flow.
Option 4: To establish a UE context in NG-RAN.
Explanation: The Reflective QoS Attribute (RQA) is an optional parameter that indicates certain traffic carried on a QoS Flow is subject to Reflective QoS. When RQA is signalled for a QoS Flow, the (R)AN enables the transfer of the RQI for AN resource corresponding to this QoS Flow.