Which of the following statements is true about IPAT via IP replacement？（）  

单项选择题Company.com has installed HACMP and is configuring a three-node cluster. One of the Applications  uses the AIX hostname as a key for authorization to execute on the specific computer. The application vendor was contacted and consented to having multiple copies of the application but required that only one application be active at any one point in time.  How can the AIX host name dependency be managed in an HACMP environment.（）

A. It cannot be managed because the application will not work properly with HACMP.
B. The application start and stop script for the application can manage the hostname.
C. HACMP will require customization to correctly manage a change in the hostname since it is tied to the primary network adapter.
D. HACMP will have to be restarted if the hostname is changed. This can be done with customization in the node_up and node_down event scripts.

单项选择题An existing cluster has an application node and database node. Changes in the application  require both nodes to have access to the other’s data all of the time.  Which facility managed by HACMP can be implemented with the least amount of impact？（）

A. NFS
B. AFS
C. DFS
D. GPFS

单项选择题Company.com is migrating from a third party managed disk subsystem to an IBM TotalStorage Enterprise Storage Server. Connection of the new storage server is complete， and it has been tested on all of the nodes in the three node HACMP cluster.  How does the customer migrate to the new storage server with minimum down time？（）

A. Shut down one node at a time and let the other node serve the application
B. Stop HACMP with the forced option and perform migration of the disks on one node，then restart HACMP
C. Stop both nodes and perform the migration all at once using standard AIX commands in parallel， then restart the cluster
D. Use C-SPOC to add the new disks to the cluster and migrate the information off the existing disks， then remove the old disks with C-SPOC

单项选择题Company.comwithanEtherChannelimplementationisconsideringanHACMPsolution.Whatconsiderationsmustbeaddressedinplanningthisconfiguration？（）

A. Hardware address takeover must be configured.
B. IPAT via IP aliasing is required for EtherChannel.
C. EtherChannel must be defined as a separate network.
D. HACMP does not support the fallover of EtherChannel.

单项选择题Continuous availability is required for an application in a two-node cluster. There is one rotating resource group in the cluster， and the nodes are identical machines. Client telnet connections to the application cannot be broken because it takes 20 to 30 minutes to recycle the client workstations and transactions will be lost.  What configuration best provides continuous connectivity to the application？（）

A. IPAT using IP Replacement without MAC address takeover.
B. IPAT using IP Aliasing and hardware MAC address takeover.
C. None because continuous telnet connectivity cannot be provided with HACMP.
D. Shared service IP address assigned to multiple network interface cards on each node.