Explanation
To implement a secure and fast solution to recover files in your ONTAP cluster from ransomware, you need to ensure that there is a Snapshot copy schedule for every volume containing files and that the option to show previous versions on each share is activated. Snapshot copies are point-in-time, read-only copies of your data that are immune to ransomware encryption and can be used to restore your files quickly. You need to have a Snapshot copy schedule for every volume to ensure that you have frequent and consistentbackups of your data.
The option to show previous versions on each share enables the users to access the Snapshot copies of their files from their Windows Desktop using the Previous Versions tab in the file properties. This way, the users can easily recover their files without involving the storage administrator. The other options are not correct because they are not necessary or supported for this scenario. The option to show previous versions on the SVM is not relevant for the users, as they access the shares, not the SVM. The option to copy a FlexClone of each volume containing files is not supported by ONTAP, as FlexClone is a feature that creates writable clones of volumes or LUNs, not copies. References :- Restore data after a ransomware attack - NetApp, Fighting Ransomware: Part Six - Recover Data Fast with ONTAP Snapshot Copies Blog - NetApp, How to Recover Files from Ransomware Attack [Full Guide 2022]