单项选择题
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.
单项选择题 Aclusterindicatesthataremotesitehasfailed.WhatfacilitiesexistinHACMP/XD：HAGeotoensurethatthefailureisnotjustaTCP/IPcommunicationfailure？（）
单项选择题 Aclusteradministratorhasdefinedacustomerrornotificationmethodthatwillemailandadministratorwhenatemperrorisdetectedonanindividualhdisk.Whatmethodshouldbeusedtotestthisfunctionality？（）
单项选择题 AclusterusingIPATviaIPaliasinghasfouradapters.NormallythereareseveralresourcegroupsthathaveatotaloffourserviceIPlabels.Whentwooftheadaptersfail，whathappens？（）