Question: What is a key requirement for the 5G system in terms of security signalling overhead?
Option 1: To maximize security signalling overhead without compromising the security level.
Option 2: To maintain the same level of security signalling overhead as in previous systems.
Option 3: To compromise on security level to minimize signalling overhead.
Option 4: To minimize security signalling overhead without compromising the security level.
Explanation: The correct answer is Option 4 because the 5G system is required to minimize security signalling overhead while maintaining the same level of security as in previous systems. This ensures that the system remains secure while also being efficient in terms of signalling overhead.