Question: In E-UTRA, what is the maximum extended DRX cycle value that a User Equipment (UE) may optionally support while in RRC_IDLE state, according to 3GPP specifications?
Option 1: Up to 5.12 seconds
Option 2: Up to and beyond 10.24 seconds
Option 3: Exactly 2.56 seconds
Option 4: Not specified for RRC_IDLE state
Explanation: This answer is correct because, as per the specifications, it is optional for a UE to support extended DRX (Discontinuous Reception) cycle values up to and beyond 10.24 seconds specifically when in the RRC_IDLE state. This feature allows for more power-saving options for UEs in idle mode, highlighting the importance of flexible DRX cycling in managing UE power consumption without compromising on reachability for paging messages.