Question: What is the primary method by which a User Equipment (UE) can obtain an IPv6 prefix during the establishment of a default EPS bearer context in an Evolved Packet System (EPS)?
Option 1: Stateful DHCPv4
Option 2: IPv6 stateless address autoconfiguration with a /64 IPv6 default prefix allocation
Option 3: Dynamic Host Configuration Protocol version 6 (DHCPv6) Prefix Delegation for additional prefixes
Option 4: Static IP address allocation via NAS signalling
Explanation: The primary method by which a UE can obtain an IPv6 prefix during the establishment of a default EPS bearer context is through IPv6 stateless address autoconfiguration with a /64 IPv6 default prefix allocation. This method allows for automatic configuration without the need for additional protocols or server interactions, making it efficient and straightforward for initial network setup.