Which two actions are required when enabling vFlash Read Cache for a virtual machine’s virtual disk? (Choose two.)
A. A value in the Virtual Flash Read Cache text box must be entered.
B. A Flash Resource Pool for Cache size reservation must be entered.
C. The Device backing and the block size must be configured.
D. The Enable virtual flash host swap cache check box must be selected.
I think the answer is correct A and D , ,, the block size is automaticaly selcted and you have no choise do deactivated but the check box Enable Virtual Flash can be modified
I agree, AC are correct, see – https://docs.vmware.com/en/VMware-vSphere/6.0/com.vmware.vsphere.storage.doc/GUID-211CE783-51A8-4B65-BFF6-434D1C272308.html
I think correct answers are: A and C. Following is a video explanning how to configure Virtual Flash Read Cache.
https://docs.vmware.com/en/VMware-vSphere/6.5/com.vmware.vsphere.storage.doc/GUID-07ADB946-2337-4642-B660-34212F237E71.html