Question: What is the primary purpose of storing the International Mobile Equipment Identity (IMEI) in a terminal?
Option 1: To provide an additional layer of security for authentication.
Option 2: For other purposes such as tracking and inventory management.
Option 3: To enable encryption for data transmission.
Option 4: To facilitate roaming between different networks.
Explanation: The IMEI is stored in the terminal primarily for purposes other than security, such as tracking, inventory management, or other operational needs. Although it's not used as a security feature, its presence is useful and should be maintained within the UMTS system.