Question: In the context of Performance Management (PM) for GSM, what is the primary purpose of measuring 'Attempted IMMEDIATE ASSIGNMENT Procedures, per cause'?
Option 1: To track the overall network congestion levels.
Option 2: To monitor and analyze the frequency of specific immediate assignment procedure initiations based on their underlying causes (e.g., 'EMERGENCY CALL', 'CALL RE-ESTABLISHMENT').
Option 3: To measure the success rate of paging procedures in the network.
Option 4: To evaluate the performance of packet switching versus circuit switching.
Explanation: This measurement is crucial for understanding how often immediate assignment procedures are attempted, segmented by their specific causes (e.g., emergency calls, call re-establishments). This granular insight helps in identifying potential issues or bottlenecks related to particular procedure types, enabling targeted optimizations in the network.