Question: Which of the following TLS versions MUST be supported by TLS endpoints according to the 3GPP TLS profile, while also considering the support for DTLS?
Option 1: Only TLS 1.2 and DTLS 1.0
Option 2: TLS 1.2, TLS 1.3, and if DTLS is supported, then DTLS 1.2
Option 3: All TLS versions from 1.0 to 1.3, and DTLS 1.2 if DTLS is used
Option 4: Only TLS 1.3 and DTLS 1.2, with no support for earlier TLS versions
Explanation: According to the 3GPP TLS profile, TLS endpoints must support TLS 1.2 and TLS 1.3. Additionally, if DTLS is supported, then DTLS 1.2 must also be supported, ensuring security through up-to-date protocols for both TLS and DTLS in the network domain security context.