Question: In a 3GPP Access (GTP-based) network, what is a policy control functionality for QoS control regarding the Default EPS bearer?
Option 1: Allocation of a guaranteed bitrate (GBR) for the Default EPS bearer.
Option 2: Authorization and enforcement of the minimum QoS allocated to the Default EPS bearer.
Option 3: Dynamic adjustment of the APN based on the Default EPS bearer's QCI.
Option 4: Authorization and enforcement of the maximum QoS allocated to the Default EPS bearer, with a non-GBR QCI.
Explanation: This is correct because, in 3GPP Access (GTP-based) networks, the Default EPS bearer has a non-Guaranteed Bit Rate (non-GBR) Quality of Service Class Identifier (QCI). Policy control should authorize and enforce the maximum QoS for this bearer, ensuring proper network resource management while providing the best service quality for default bearers without guaranteed bitrates.