HyperFlex virtual servers differ from regular servers in which two key areas? (Choose two.)

When local writing or reading is performed, the lOVisor intercepts the read/write requests and forwards them
to CVMs across the cluster This action allows non-local CVMs to be aware of the input/output requests so that
they can perform the appropriate input/output action lOVisor provides which two additional functionalities?
(Choose two.)
Which two steps should be performed before installing HyperFlex? (Choose two.)
Which two features enable RAID cards striping as well as mirroring and parity1? (Choose two.)