Question: What does the "Percentage RRU.RachDedicatedPreamblesAssigned" measurement represent in E-UTRAN performance management?
Option 1: The number of dedicated RACH preambles available for assignment to UEs.
Option 2: The percentage of time when at least one dedicated RACH preamble is assigned to a UE.
Option 3: The total number of UEs assigned dedicated RACH preambles during a measurement interval.
Option 4: The percentage of time when all dedicated RACH preambles are assigned to UEs.
Explanation: This measurement provides insight into the utilization of dedicated RACH preambles in E-UTRAN, specifically the percentage of time when all available preambles are assigned to User Equipment (UEs). This metric is useful for evaluating the efficiency of random access channel (RACH) resource allocation and identifying potential bottlenecks in the network.