Your network contains 20 iSCSI storage appliances that will provide storage for 50 Hyper-V hosts running
Windows Server 2012 R2.
You need to configure the storage for the Hyper-V hosts. The solution must minimize administrative effort.
What should you do first?

A.
Install the iSCSI Target Server role service and configure iSCSI targets.

B.
Install the iSNS Server service feature and create a Discovery Domain.

C.
Start the Microsoft iSCSI Initiator Service and configure the iSCSI Initiator Properties.

D.
Install the Multipath I/O (MPIO) feature and configure the MPIO Properties.

Explanation:
Windows Server 2012 includes an iSCSI Target role that, along with Failover Clustering, allows it to become a
cost-effective and highly-available iSCSI Storage Array.
We can connect from our Hyper-V host to the iSCSI target on the storage array with the following PowerShell
command line:
New-IscsiTargetPortal TargetPortalAddress <IP_Address or FQDN of storage array>
$target = Get-IscsiTarget
Connect-IscsiTarget NodeAddress $target.NodeAddress
Incorrect:
Not B. Discovery Domains in an iSCSI fabric, like zones in a Fibre Channel fabric, enable you to partition the
storage resources in your storage area network (SAN). By creating and managing Discovery Domains, you can
control the iSCSI targets that each iSCSI initiator can see and log on to.
Configure iSCSI Target Server Role on Windows Server 2012