请教：讨论几个问题？？

unix_engineers

请教：讨论几个问题？？


讨论如下几个题目，正确答案应该是什么，为什么呢？

1）Company.com with an EtherChannel implementation is considering an HACMP solution. What considerations must be addressed in planning this configuration?
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.




2）Company.com moved their application start routines from the inittab and place them under
HACMP control. During testing, the applications did not always start as desired. What is

the best practice for the application start routines.
A. Assume the system was stopped by a failure.
B. Ensure the hostname parameters is set correctly.
C. Assume the system was stopped by a graceful shutdown.
D. Mount all volumes and file systems before running the application.


3）During routine examination of the log files, a message similar to "TS_DMS_WRINING_ST"

was discovered. To avoid future problems, change the Network Module failure detection rate

to:
A. a faster value on the fastest heartbeat network.
B. a slower value on the slowest heartbeat network.
C. a faster value on the slowest heartbeat network.
D. a slower value on the fastest heartbeat network.

4）Following a successful migration, it is highly recommended that concurrent Volume Groups

be Converted to enhanced concurrent capable Volume Groups. In order to follow this
recommendation, what step must be completed first?
A. The Volume Groups must be changed with chvg -E vgname.
B. The Volume Groups must be a member of a resource group and must be varied on al nodes of
the cluster.
C. The Volume Groups must be a member of a resource group and must be varied off all nodes
of the cluster.
D. The Volume Grups cannot be changed to enhanced concurrent capable because they must be
recreated with mkvg -C vgname.


5）While performing LVM maintenance, the volume group datavg1 was exported and re-imported.
The volume group is varied online, and the filesystems have been mounted. However, the
database will not start. What action would most likely resolve this problem?
A. Perform a shown command on the VG device files.
B. Perform a syncvg to validate VG integrity.
C. Perform a redfinevg to correct the VGDA state.
D. Perform a synchlvodm to correct the LV ownership.

6）Company.com has a resource group that contains a database that is accessed by a web client based on another system. The communication to the database is TCP/IP. Occasionally after a failure, the end users get unusual error messages that indicate the database server is not available. It has been determined that the web server is trying to access the database server's information before it has completed file system recovery after a failure. How can HACMP affect this problem?
A. HACMP can resequence the order to the starting of the various resource group elements by
utilizing Dynamic Node Priority.
B. The order of dependency can be controlled though the HACMP resource group configuration
if the web server was made to be part of the HACMP cluster.
C. HACMP can delay making the network label available until after the filesystem checks have
completed with the "filesystem mounted before IP is configured".
D. The IP service label can be in a second resource group allowing the sequential processing of
resource groups to control when the IP service label is made available.