Practice question 175 of 180 · hard
After regional failover, some users are still connected to the original region while others are writing to a recovered profile copy. What should the team do before failback?
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- Coordinate sign-out or fence old writers, choose/reconcile the authoritative profile state and transfer users under a controlled procedure.
Profile continuity requires coordinated state and writers. A regional host design alone does not guarantee safe profile failover or failback. Option explanations: A. Delete both profile copies to force the users to start fresh.: That discards data rather than reconciling recovery state. B. Coordinate sign-out or fence old writers, choose/reconcile the authoritative profile state and transfer users under a controlled procedure.: Controlled write ownership avoids divergent copies and conflicts during recovery and failback. C. Treat Cloud Cache or replication as a guaranteed historical backup with zero loss.: Asynchronous replication can lose recent changes and is not historical protection. D. Allow both regions to overwrite each other’s profile copies continuously without coordination.: Competing writes can create conflicts or corruption. Sources: Multiregion business continuity — https://learn.microsoft.com/en-us/azure/architecture/example-scenario/azure-virtual-desktop/azure-virtual-desktop-multi-region-bcdr
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