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- 单项选择题 A new HACMP maintenance level has recently been released. An administrator is creating a project plan that is required for applying the updates for a three-node production cluster. To minimize downtime，what is the best way to accomplish the updates on all cluster nodes？（）
A、 Perform a graceful takeover one node at a time and apply the updates.
B、 Perform the updates on all nodes simultaneously using C-SPOC utilities.
C、 Perform the updates on node at a time with the cluster software active.
D、 Perform a graceful stop of all cluster nodes and apply updates to all nodes.
- A
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