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？（）   

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.

单项选择题During a planning meeting， Company.com indicates that they intend to make a relational  Database highly available. The application has a pre-requisite that a kernel extension be loaded from  etc inittab.  How would this be managed in an HACMP environment？（）

A. It can be started with a crontab entry.
B. It can be created as an Application Server.
C. It can be added to a resource group as a dependency.
D. It cannot be done because HACMP provides no method to order application start/stop scripts.