单项选择题 Aclusternodehasafailedfibreadapterrequiringthenodetobehaltedtoreplaceit.Tominimizedowntime，whatistheappropriatemethodofperformingthisrepair？（）

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？（）

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？（）