Question: In a Slice Subscriber Identity Module (SSIM) application, what is the primary purpose of the Elementary Files (EFs) contained within the SSIM Application Dedicated File (ADF) level?
Option 1: To store subscriber's personal data and preferences.
Option 2: For cryptographic key management related to secure boot processes.
Option 3: To contain service and NSSAA procedure information related to the subscriber.
Option 4: Exclusively for logging network access attempts and errors.
Explanation: The correct answer reflects the primary purpose of EFs in the SSIM ADF. These files store service-related data and information pertinent to Network Slice Selection Assistance Information (NSSAA) procedures, vital for efficient network operation and subscriber management.