Question: What is the primary purpose of the 'Audit Required' procedure initiated by the Node B in the UTRAN Iub interface?
Option 1: To synchronize logical resources and detect potential state or configuration mismatches between Node B and CRNC.
Option 2: To perform a routine software update on the Node B, ensuring alignment with the latest CRNC protocols.
Option 3: To notify the CRNC of an imminent Node B shutdown for maintenance, allowing for resource reallocation.
Option 4: To request additional bandwidth from the CRNC to enhance Node B's capacity during peak hours.
Explanation: The 'Audit Required' procedure is designed to address potential discrepancies in state or configuration information between the Node B and the CRNC. By initiating this, the Node B seeks to synchronize its logical resources with the CRNC's records, ensuring operational consistency and preventing errors from misalignment.