单项选择题

A.It defines the maximum permissible time period betwee……

When tuning a network module what is the purpose of the grace period？（）

A.It defines the maximum permissible time period between missed heartbeats before a failure is detected
B.It defines the time period to wait to activate the network module after starting the cluster manager
C.It defines the period between detecting a missed heartbeat and initiating a network down， allowing thenetwork to stabilize
D.It defines the time period during which， after a network failure was detected， further network failures of thesame type will be ignored

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单项选择题An administrator was notified that a resource group has failed over from the home node， Node1 to a standbynode， Node2 and that Node1 had been powered off. Upon restarting Node1 the administrator checked the AIXerror log and the cluster.log Which of the following is most likely the cause of the failover？（）

A.AIX was shut down
B.A fatal corruption occurred in the gsclvmd daemon
C.The topsvcs daemon was stopped by the system resource controller
D.The grpsvcs process was stopped by the system resource controller

单项选择题An administrator is notified that a resource group has failed over from the home node， Node1 to a standbynode， Node2 and that Node1 has been powered off. Upon restarting Node1 the administrator checks the AIXerror log and the cluster.log Which of the following is the most likely cause of the failure of Node1？（）

A.The operating system crashed
B.A disk failure forced a volume group off line
C.The System Resource Controller executed a system halt
D.The topology services daemon has crashed due to an ODM mismatch

单项选择题Whathappensonfailureofapreorposteventscript？（）

A.The error is logged and HA will continue processing
B.If configured， a recovery command will be run to deal with the problem
C.An event error is generated and 3 minutes later the cluster will enter config_too_long state
D.An event error is generated and 6 minutes later the cluster will enter config_too_long state

单项选择题During a resource group takeover operation， the resource group was found to go into error state. A tail of thehacmp.out file released the following message： Aug 3 12：57：20 EVENT FAILED： -1： event_error 1 TE_RG_MOVE -1 WARNING： Cluster PowerHA has beenrunning recovery program ’ usr es sbin cluster events rg_move.rp’ for 360 seconds. Please check clusterstatus. What command can the administrator issue to cause the cluster to continue processing？（）

A.clruncmd
B.clrestart
C.clcontinue
D.clresactive

单项选择题An administrator has a 2 node cluster running PowerHA version 5.5. They remove a resource group from theactive cluster configuration. When performing a verify and synchronize of the cluster， the administrator getsthe following error： migcheck[471]： cl_connect（） error， nodename=Node1， rc=-1 cldare： A communication error prevents obtaining the VRMF from remote nodes. A DARE event cannot be run until this is corrected. Please ensureclcomd is running. What is the most likely cause of this error？（）

A.There is a DARE lock in place
B.A PowerHA migration is in progress
C.Cluster services is not active on the other node
D.The other cluster node is running a different version of RSCT