单项选择题 Following an unsuccessful cluster fallover test， it is determined that the nfsrg1 resource group  was the problem causing the cluster to run the config_too_long evetn. The nfsrg1 resource group contains 10 nfs filesystems that are cross-mounted to the other cluster node.  Without modify8ing the time until warning parameters，what can be done to enhance NFS fallover performance？（）

单项选择题 AHACMP/XD：HAGeoclusterhasbeeninstalledwithfournodes，twonodesateachsite.TheclusterisprotectedfromsiteisolationbytheDBFSfacilityinHACMP/XD：HAGeo. Intheeventofasitefailure，whathappens？（）

单项选择题 Node ’C’ has just completed reintegration in a three-node cluster. The hacmp.out logifle displays  The event node_up_complete for Node ’C’. The cluster administrator wishes to verify that the cluster is stable.  In addition to reviewing the cluster log files，what utility should be run to verify the cluster state？（）