IBM C4040-332 問題集

質問 1：
A company is determining how they can use DLPAR operations within PowerHAto maximize the usage of their system. Which DLPAR attribute can be controlled through PowerHA?
A. The physical I/O adapters that will need to move to an application server
B. The minimum and maximum virtual processors required to start an application server
C. The LPAR CPU Shared Pool weighting required to start an application server
D. The minimum and desired processing units required to start an application server
正解：D

質問 2：
An active, active (mutual takeover) 2-node PowerHA cluster is currently up and stable. Both nodes are located in separate buildings, one kilometer apart. Node2 in SiteB suddenly powers off. On reboot of the failed node, the cluster administrator checks the error log and discovers the node had been halted. The network team confirms there was a temporary loss of the IP network between sites.

Why did Node2 halt?
A. On loss of the IP network, Node1 sent a halt signal to Node2 via the disk heartbeat network.
B. On loss of the IP network the grpsvcs daemon crashed, causing Node2 to halt.
C. The cluster became partitioned. On recovery of the IP network, Node1 sent a halt signal to Node2.
D. Node2 was automatically set to halt on loss of the IP network.
正解：C

質問 3：
A PowerHA 7 cluster is running on two fully virtualized LPARs. An administrator simulates a network failure on the cluster by running the "ifconfig enX down" command on all network interfaces on one node. The resource group moved, and clstat shows the cluster as stable on both nodes.
What prevented the resource group from being active on both nodes?
A. The nodes are able to connect to each other via vsa interface.
B. The nodes are able to connect to each other via diskhb interface.
C. The nodes are able to connect to each other via dpcom interface.
D. The nodes are able to connect to each other via vscsi interface.
正解：C

質問 4：
Based on the following output from a PowerHA 7 cluster node, what else can be done to provide higher availability?

A. Mirror caavg_private across shared disk.
B. Enable fast failure detection.
C. Mirror rootvg across local disk.
D. Change non mirrored volume group disks to hot spare using the chpv command
正解：C

質問 5：
What does the following notification from node Jessica mean?
EVENT COMPLETED: server_down Jessica 12 testapp 0
A. Jessica has failed
B. Jessica is reporting that another node is down
C. Jessica was taken offline
D. An application on Jessica has failed
正解：D

質問 6：
An administrator has configured a 2-node PowerHA 6 cluster, Node1 and Node2, with no non-IP networks.
Sometime after configuring the cluster, the administrator noticed that Node2 appeared to have been shut down.
After restarting Node2 the administrator analyzed the cluster log files in an attempt to determine the cause of the problem.
The clstrmgr.debug log file contained the following information:

Based on the above information, which of the following could explain why Node2 was shut down?
A. Automatic error notification detected a problem and halted the node.
B. Node isolation occurred causing a domain merge.
C. The node was unable to fork a new topology services process due to memory limitations.
D. The node was halted due to a DMS_TIMEOUT.
正解：B

質問 7：
A 2-node cluster configuration has an application server named appl. The appl server has custom application monitors named appmon_a and appmon_b.
The setting of appmon_a and appmon_b follows:
appmon_a: monitoring process=A, monitor interval=20, stabilization interval=60, restart count=1 appmon_b: monitoring process=B, monitor interval=10, stabilization interval=60, restart count=0 If process B fails 30 seconds after process A fails and successfully restarts, what is the most amount of time it will take for a failover event to begin?
A. about 10 seconds
B. about 60 seconds
C. about 80 seconds
D. about 30 seconds
正解：A