Question: What is a characteristic of how Shared Secret Data (SSD) is handled in relation to the Mobile Equipment (ME) and its storage on the SIM?
Option 1: The ME directly accesses and manages SSD storage on the SIM.
Option 2: The method of SSD storage on the SIM is specified for interoperability across all MEs.
Option 3: SSD is not accessible by the Mobile Equipment, and its storage method on the SIM is not standardized.
Option 4: Only the ME's operating system can update SSD, with no involvement from other functions.
Explanation: This correct answer reflects the nuanced understanding of SSD handling. Shared Secret Data is kept secure by limiting its accessibility and not defining its storage method on the SIM for Mobile Equipment, ensuring an additional layer of security and flexibility in implementation.