Question: What is the maximum value that can be assigned to the NextHopChainingCount information element in the Radio Resource Control (RRC) protocol?
Option 1: 5
Option 2: 7
Option 3: 10
Option 4: 15
Explanation: The correct answer is 7 because according to the ASN.1 definition, NextHopChainingCount is an INTEGER with a range of (0..7), indicating that the maximum value it can take is 7. This information element is used to update the KgNB key and corresponds to parameter NCC in the security architecture and procedures for 5G System.