Question: In the context of USAT interpreter byte codes, what is the primary purpose of using a one-time password in conjunction with the Page Unlock Code for variable management?
Option 1: To authenticate deck-level template requests
Option 2: To encrypt variable values stored in the SIM
Option 3: To restrict access to specific decks within a service
Option 4: To control and secure sharing of variable values between decks
Explanation: The correct answer highlights the key role of the one-time password alongside the Page Unlock Code in securely managing the sharing of variable values across different decks, ensuring protected access to variables and preventing unauthorized changes or exposures.