A cluster node has a failed fibre adapter requiring the node to be halted to replace it. To minimize downtime， what is the appropriate method of performing this repair？（）

单项选择题A cluster administrator decides ti implement application monitoring in order to monitor both a web application and its supporting database. The plan is to use a single resource group prod_rg and to configure one monitor method for the web app and one monitor method for the database.  Which of the following statements best describes the need for custom resource monitor？（）

A. Multiple application servers must be in a single resource group.
B. Multiple application servers per resource group may be monitored.
C. Multiple resource groups must each contain a single application server.
D. Multiple application servers in a cluster cannot use process monitoring.

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.