单项选择题

During implementation of a two-node cluster，it is deter……

During implementation of a two-node cluster，it is determined that error notification for the shared Disk subsystem would be beneficial.
Which of the following is a pre-requisite for implementing automatic error notification？（）

A. The cluster must not be running.
B. The cluster.es.server.utils lpp must be installed.
C. The error notification module must be enabled in RSCT.
D. The permissions on /tmp/hacmp.out need to be changed to 774.

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单项选择题During cluster fallover testing，the administrator determines that additional work is required to stop existing test applications on the standby node，prior to starting the production applications on the surviving node. To manage this type of requirement，which step should be performed first？（）

A. Create a custom pre/post event.
B. Add a custom user defined event.
C. Define custom error notification.
D. Modify the test application server.

单项选择题Automaticerrornotificationcanbeconfiguredtomanagewhichtypeofdiskerror？（）

A. Hard errors
B. Media errors
C. Temporary errors
D. All disk error types

单项选择题While reviewing the hacmp.out after a node failure，an administrator realizes that the custom Event queue_down did not execute. The queue_down event shows up when a list of custom events is displayed. What would be the next logical step to resolve this problem？（）

A. Delete the custom event and add a pre event and synchronize.
B. Synchronize the cluster and recheck the cluster custom events.
C. Create an application server that will stop and start the queues.
D. Add a pre or post event to appropriate cluster events and synchronize.

单项选择题The IP subsystem fallover behavior of a two-node cluster is being testing in a large client organization. One of the tests is to simulate a network_down event and verify that HACMP movesthe single resource group to the standby node. What is the best way to simulate a network down condition？（）

A. Turn off the IP core switch connecting the two nodes.
B. Issue the command "stopsrc -g inetd" on the node that has the resource group.
C. Issue the command "sh /etc/rc.tcpclean" on the node that has the resource group.
D. Simultaneously unplug all network cables from the node that has the resource group.

单项选择题Followingasuccessfulclusterfallover，clstatreturnsnostatus，thesnmpinfocommandhangs.AllClusterresourcesappeartobeactive.Whatshouldbedonetoresolvethisproblem？（）

A. Restart all cluster nodes.
B. Verify that cluster.es.client.rte is installed on all nodes.
C. Use chssys -a -d -p -s clcomdES to enable cluster communication.
D. Use the /usr/sbin/snmpv3_ssw-1 command to revert SNMP from version 3 to version 1.