A branch office keeps a Windows file server that staff use locally, and the team wants it to stay bi-directionally synced with Azure Files while caching only frequently used files on the local disk. Which tool delivers this?
- AAzure File Sync installed on the server Correct
- BAzCopy copying the file share each night
- CAzure Data Box shipped to the branch office
- DAzure Storage Explorer managing the share
Why A is correct: Correct. Azure File Sync centralises file shares in Azure Files yet keeps a Windows file server, automatically staying bi-directionally synced with the cloud copy and supporting cloud tiering so frequently accessed files are cached locally while infrequent ones stay in Azure.
Why B is wrong: AzCopy is a command-line copier whose synchronize option is one-direction only, so it cannot keep the local server and Azure Files updated in both directions as required.
Why C is wrong: Azure Data Box ships a physical appliance for one-off offline bulk transfer, so it does not provide the ongoing bi-directional sync or cloud tiering the branch office needs.
Why D is wrong: Azure Storage Explorer is a graphical app for manually browsing files and blobs, so it supports ad-hoc management rather than continuous server-to-cloud synchronisation with tiering.