Question: What happens to the Mobile Station (MS) when the READY timer length is set to all 1s (binary) by the Serving GPRS Support Node (SGSN)?
Option 1: The MS immediately transitions to STANDBY state.
Option 2: The MS resets the READY timer to its default value.
Option 3: The MS and SGSN MM contexts are deleted.
Option 4: The READY timer function is deactivated, and the MS remains in READY state.
Explanation: Setting the READY timer length to all 1s (binary) deactivates the READY timer function. This means the timer no longer runs, allowing the Mobile Station (MS) to remain continuously in the READY state without transitioning to STANDBY due to timer expiration, useful for scenarios requiring constant connectivity.