On a three-node failover cluster, you need to run pre- and post-scripts when Cluster-Aware Updating (CAU) applies updates while minimizing administrative effort. Which mechanism should you use?

Run profiles are the correct mechanism because CAU natively supports pre-update and post-update scripts through run profiles. These profiles are XML files that define the update orchestration, including specifying scripts to run before and after the update process on each node. This integrates directly with CAU's functionality, minimizing administrative effort compared to external solutions. Azure Functions are a cloud-based serverless compute service and are not directly integrated with on-premises CAU script execution. WSUS is for managing and distributing updates, not for running custom scripts during the CAU process. Scheduled tasks could be used, but they would require manual configuration on each cluster node and lack the integrated orchestration that run profiles provide within CAU.