单选题Company.com with a newly installed cluster has been checking the logfiles to determine if the  cluster has had any recent activity. The non-IP RS232 heartbeat connection seems to be having a difficulty. The serial network goes down，and then a couple of

第1题：

Company.com has a cluster with nodes that support "hot swap" adapters. During an upgrade of  The network infrastructure，an additional network adapter has been added to the nodes and configured in AIX.  What is the next step required to add this adapter to HACMP？（）  

• A、 Stop the node.
• B、 Stop the cluster.
• C、 Run autodiscovery.
• D、 Configure the IP adapter.

第2题：

During normal cluster processing in a five-node cluster，one of the nodes unexpectedly crashes. A review of the system dump indicates that a DMS timeout has occurred. The cluster is configured to use disk heartbeats as a Point-to-Point network.  What should be done to address the problem with this configuration？（）  

• A、 More disk should be added to the disk heartbeat network，allowing more paths for heartbeats.
• B、 An RS232 network is required to supply a more robust non-IP network when disk heartbeating is implemented.
• C、 The network tunable parameters should be changed to allow more missed heartbeats since the disks may be heavily used.
• D、 An error notification method is required to determine the action to take in response to a failure of the disk heartbeat.

第3题：

A two-node cluster is attached via SAN to shared disk. The customer has requested that one of  the nodes be moved to another room 300 feet away. However， this distance exceeds the length specified by the RS232 specifications.  What solution would resolve the RS232 specification issue with the fewest additional components？（）

• A、 Target mode fiber channel can be used with a SAN solution.
• B、 The heartbeat could be established by using a disk heartbeat.
• C、 An RS232 line driver can be used to extend the existing serial connection.
• D、 The NIM for the serial connection can be altered to compensate for the additional delay caused by the increased distance.

第4题：

Which of the following is required to ensure the completion of all tests within the automated procedure of thecluster test tool？（）

• A、Application monitoring has been configured
• B、Only disk heartbeat networks have been used
• C、Cluster nodes are attached to two IP networks
• D、Resource Group dependencies have been configured

第5题：

The en0 interface on Node1 of a two-node cluster has failed. This adapter is configured with a boot addressand under stable operations also has the service address of the cluster’s single resource group. The resourcegroup is configured with the fallback option. The HA network was configured for IPAT via aliasing and now theservice address is on the en1 interface in the cluster. The en0 interface has already been physically replacedand configured with the boot address. Which of the following will return the cluster to its original state andminimize cluster downtime？（）

• A、Run cluster synchronization.
• B、Restart cluster services on Node1.
• C、Perform a swap_adapter using C-SPOC
• D、Restart cluster services on both nodes

第6题：

An administrator has added an additional network adapter to each cluster node. The adapters  have been configured and tested， and the /etc/hosts file has been updated. However，the adapters do not appear in the pick list when the administrator tries to define the adapters to HACMP.  What would be required to correct this problem？（）  

• A、 Rerun autodiscovery.
• B、 Synchronize the cluster.
• C、 Restart cluster services.
• D、 Delete and recreate the adapters.

第7题：

Company.com with a newly installed cluster has been checking the logfiles to determine if the  cluster has had any recent activity. The non-IP RS232 heartbeat connection seems to be having a difficulty. The serial network goes down，and then a couple of minutes later comes back up again. This pattern is repeated many times in the log.  If this system was installed without regard to best practices， what is the most likely problem with the serial network？（）  

• A、 The serial port is malfunctioning and needs to be repaired.
• B、 The baud rate is incorrectly specified in the AIX devices configuration.
• C、 The serial port is not a port approved to support HACMP heartbeat traffic.
• D、 The baud rate is incorrectly specified in the HACMP interface configuration.

第8题：

A customer has a requirement to build a 4 node cluster. Disk heartbeating will be used as the non-IP network.What is the maximum number of disk heartbeat point-to-point links one would need to implement in order toachieve the highest level of availability？（）

• A、4
• B、6
• C、8
• D、12

第9题：

A three-node cluster experienced a node failure. The resource groups were acquired as cexpected. The node has been repaired，and HACMP has been restarted.  How does the operator determine that the node has successfully re-integrated into the cluster？（）  

• A、 Use the clstat command.
• B、 Use the cIRGinfor command.
• C、 Tail the /etc/hacmp.out file and wait for "node_up_complete" to finish successfully.
• D、 Tail the /usr/es/adm/cluster.log file and wait for "node_up_complete" to finish successfully.

第10题：

A two-node cluster has both a single TCP/IP heartbeat and a single non-IP serial heartbeat. TheService Level Agreement regarding the speed of cluster fallover has been updated，and Fast Disk Takeover will be implemented to meet the new Service Level Agreement.  Which of the following should be implemented to increase the reliability of Fast Disk Takeover？（）  

• A、 Disk should be mirrored across separate storage enclosures.
• B、 Disk heartbeats should be added over multiple disk adapters.
• C、 Disk major and minor numbers should be set as unique across nodes.
• D、 Disk adapter queue_depth should be increased from the default values.