单项选择题 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？（）

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

单项选择题 WhatrestrictionsapplytousingvirtualEthernetwithinaclustercontainingVIOclients？（）