On which volumes can you use direct access (DAX)?

You have a Storage Spaces Direct configuration that has persistent memory and contains the data volumes shown in the following table.

You plan to add data volumes to Storage Spaces Direct as shown in the following table.

On which volumes can you use direct access (DAX)?
A . Volume3 only
B. Volume4 only
C. Volume1 and Volume3 only
D. Volume2 and Volume4 only
E. Volume3 and Volume4 only

Answer: A

Explanation:

DAX can only be used on one volume and the volume has to be NTFS. You could configure DAX on Volume1 (although that would require reformatting the volume) or Volume3. However, ‘Volume1 only’ isn’t an answer option so Volume3 is the correct answer.

‘Volume1 and Volume3’ is incorrect because of the single volume limitation.

Reference: https://docs.microsoft.com/en-us/windows-server/storage/storage-spaces/persistent-memory-direct-access