Question: What IP protocol versions are mandated to be supported by both the 5G Core (5GC) and Next Generation Radio Access Network (NG-RAN) for signaling transport, according to 3GPP specifications?
Option 1: Only IPv6 (Internet Protocol Version 6)
Option 2: Only IPv4 (Internet Protocol Version 4)
Option 3: Either IPv6 or IPv4, but not necessarily both
Option 4: Both IPv6 and IPv4 (Internet Protocol Versions 6 and 4)
Explanation: This answer is correct because the specifications require support for both protocol versions, ensuring backward compatibility and future-proofing for diverse network environments. Both IPv6 and IPv4 must be supported, not exclusively one or the other.