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单项选择题The user base of a three-node cluster has increased. In order to add clustered users to all nodes， which of the following steps should be performed？（）  

A、 On one of the nodes，add the users via C-SPOC ’Add a User to the Cluster’smit menu.

B、 Use C-SPOC to synchronize the password files between cluster nodes.

C、 On all of the nodes，add the users to the /etc/passwd and system security files，and then synchronize the cluster.

D、 On one of the nodes，add the users to the /tec/passwd and system security files，add home directories，and use cron to automate the movement of system security files between nodes.

  • A

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