Question: What triggers a User Equipment (UE) to stop using a currently employed Enhanced Transport Format Combination (E-TFC)?
Option 1: Insufficient UE transmission power to support the current E-TFC
Option 2: Change in cell re-selection delay timer
Option 3: Receipt of a new E-TFC allocation from the eNodeB
Option 4: Handover to a different frequency band
Explanation: This question assesses understanding of UE behavior in managing transmission resources based on its capabilities. The correct answer highlights a key scenario where a UE must adapt its resource usage due to limitations in its transmission power, ensuring efficient and reliable network operation, particularly where maintaining signal strength is crucial for service quality.