Question: What security features should NF Service based discovery and registration support in a 5G System?
Option 1: Confidentiality, integrity, and replay protection
Option 2: Only confidentiality and integrity
Option 3: Only replay protection and mutual authentication
Option 4: None of the above
Explanation: NF Service based discovery and registration should support confidentiality to prevent unauthorized access to sensitive information, integrity to ensure that data is not tampered with during transmission, and replay protection to prevent attackers from reusing previously sent messages. This is essential for maintaining the security and trustworthiness of the 5G System.