An architect is configuring a PowerHA cluster in the following way：The cluster will consist of two nodes.
Each node will have two boot interfaces configured as a single PowerHA network.
The cluster is to have asingle resource group with a single service address.Heartbeating over aliased is not to be used.
What is the minimum number of subnets required to implement this cluster？（）

An administrator is installing PowerHA filesets， and this cluster will be cross-mounting filesystems using NFSversion 4.
Which additional fileset is required？（）

A client wants to implement a highly available cluster between two sites. At each site the client has an IBMDS8300.
At each site， the client would like a single node which will be connected through a SAN to the local DS8300but not the remote DS8300.
Which clustering product could be used to provide high availability for this infrastructure？（）