Question: What is the minimum recommended public key length for RSA certificates in 3GPP Network Domain Security (NDS) that expire after 2030?
Option 1: 1024-bit
Option 2: 3072-bit
Option 3: 2048-bit
Option 4: 4096-bit
Explanation: According to security guidelines for certificates in 3GPP NDS, key lengths less than 3072-bits should not be used in certificates that expire after 2030 due to planned prohibitions by several organizations. Thus, the minimum recommended public key length for RSA certificates expiring after 2030 is 3072-bit, ensuring future compliance and security.