Anenterprisehastwonodes-Node’A’runsalargerelationaldatabaseandhasixCPUsand32GBofmemory.-Node’B’isanapplicationserverwiththreeCPU’sand16GBofmemory.Duringpeakproductionperiods，theCPUloadforNode’A’isnormallybetween30%and40%.ForNode’B’，theCPUloadis10%to20%duringpeakproductionperiods.WhichofthefollowingdescribesthebestsolutionforanHACMPcluster？（）
A.Twoclusterwithtworesourcegroupsinamutualtakeoverconfiguration.
B.Oneclusterwithtwocascadingresourcegroupsinamutualtakeoverconfiguration.
C.Oneclusterwithtworotatingresourcegroupsinaone-sidedhotstandbyconfiguration.
D.Twoclusterswithtworesourcegroupsinahot-standbyconfigurationwithanewlyacquired thirdnode.
参考答案：B
