Which is the most secure method of connecting to an iSCSI storage array using an independent
hardware iSCSI adapter?

A.
One-way CHAP

B.
Mutual CHAP

C.
Per-target CHAP

D.
Per-subnet CHAP

Explanation:

If you’re thinking two direction CHAP authentication would be the most secure, you would probably
be right EXCEPT the question was about an independent hardware iSCSI adapter. As per the
VMware pubs page: “Independent hardware iSCSI supports CHAP only at the initiator level.”
which means One-way CHAP.