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单选题
An administrator mistakenly shutdown production after a fallover because the service IP address  Was shifted from the normal production node to the standby node.  What can be done to avoid this type of mistake in the future?()
A

 Include the service IP address in the administrator’s PS1 prompt

B

 Alias the service IP address to the hostname in the /etc/host file

C

 Define a persistent IP address with HACMP and make it a practice to use the persistent address for administration work

D

 Add a DNS entry to map the standby node name to the service IP address so telnet connections will be to the correct node


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