Question: Under what condition is the initiation of the Compressed Mode Command procedure prohibited for a UE-UTRAN connection in the DRNS?
Option 1: When the UE is in idle mode.
Option 2: During an ongoing handover process.
Option 3: If a Prepared Reconfiguration exists for the UE Context.
Option 4: When compressed mode is already activated.
Explanation: The Compressed Mode Command procedure shall not be initiated if a Prepared Reconfiguration exists, ensuring sequential management of configuration changes to maintain stability and integrity of the UE Context in the DRNS.