After an HACMP migration， which included a large number of shared disks，cluster testing is  
performed. During testing， it becomes apparent that Fast Disk Takeover is not working properly. 
Which of the following is the most likely cause of the problem？（）  

单项选择题During the installation of a cluster， the non-IP network failed. The cause was a connector that was  Not properly secured. The customer wants a better notification method in the event that the non-IP network fails in the future.  How could customization of the cluster be accomplished？（）

A. Customize the node up event script to send an email to the operator.
B. Have HACMP send mail when the non-IP network fails by customizing the RG_MMOVE event script.
C. Change the network module to be slower so that a temporary failure of the non-IP network would not report an error.
D. Use snmp or clinfo to monitor the status of the non-IP network and dispatch some type of warning message.

单项选择题An install of cluster .es software failed. Output from the failure indicates missing system  requisites. Every subsequent attempt to install the software abended.  In order for the cluster to install，the most likely way for the administrator to resolve this problem is to install the  bos.data  and which other fileset（s）？（）

A. "rsct.*"
B. "xIC*" and "rsct.*"
C. "bos.adt.*" and "rsct.*"
D. "csm.*.rte" and "rsct.*"

单项选择题AVolumeGroupappvghasbeenconvertedtoenhancedconcurrentvolumemodeusingC-SPOC.HowshouldtheVolumeGroupbebroughtonline？（）

A. Using varyonvg appvg.
B. Using varyonvg -f appvg.
C. Under the control of resource group management.
D. Automatically at boot time using chvg -ay appvg.

单项选择题Company.com is planning for an HACMP cluster and wants to know more about the network requirements. The plan is to use IPAT via IP aliasing and heartbeating via IP aliasing to preserve the corporate IP addresses. Currently the customer uses a separate VLAN for each individual subnet.  Which statement best describes how HACMP co-exists with VLAN’s in this configuration？（）

A. All subnets in use by HACMP must be in the same VLAN.
B. All subnets in sue by HACMP must be in a different VLAN.
C. HACMP does not support multiple subnets when using heartbeating via IP aliasing.
D. HACMP does not support the use of VLAN.

单项选择题While installing the equipment for a new two-node cluster， it is discovered that the disk subsystem  Rack has one connection to the power mains. The explanation given was that the disks are to be mirrored between the two disk drawers in the rack and that a failure in either of the disk drawers would simply result in half of the disk being lost.  What can be done to avoid a single point of failure？（）

A. Customize HACMP to overcome quorum issues.
B. Add a second PDU to separate the power connections.
C. Use RAID5 when implementing two IO racks in a HACMP environment.
D. Add another shared disk to each volume group to avoid quorum issues during fallover.