Question: What is a key characteristic of how the Content of Communication (CC) is presented on the HI3 interface for Lawful Interception (LI), as per 3GPP security standards?
Option 1: Encrypted to ensure confidentiality, with decryption keys provided separately.
Option 2: As a transparent en-clair copy of the information flow during an established communication.
Option 3: Summarized for efficiency, focusing on key communication metadata.
Option 4: Buffered for delayed transmission to accommodate network congestion.
Explanation: The correct answer is Option 2 because, according to the specified standards for Lawful Interception (LI) on the HI3 interface, the Content of Communication must be presented in its original, unaltered form - as a 'transparent en-clair copy' - to ensure integrity and accuracy of the intercepted communication. This method supports both voice and data transmissions without alteration, facilitating unbiased lawful interception practices.