Question: What is required for protecting keys stored or processed in cleartext within a gNB deployment?
Option 1: The whole entity should be placed in a physically secure location, and keys can be stored and processed without any additional protection.
Option 2: Any part of the gNB deployment that stores or processes keys in cleartext shall use end-to-end encryption to protect the keys.
Option 3: Keys stored inside a secure environment in any part of the gNB should be regularly updated to prevent unauthorized access.
Option 4: The part of the gNB deployment that stores or processes keys in cleartext shall be protected from physical attacks, and if not possible, the whole entity should be placed in a physically secure location.
Explanation: Protecting keys stored or processed in cleartext within a gNB deployment is crucial. The correct answer requires that any part of the gNB deployment handling keys in cleartext must be protected from physical attacks, and if this is not feasible, the entire entity should be placed in a physically secure location to prevent unauthorized access.