单项选择题 Which of the following is an advantage of a virtualized server environment?（）

单项选择题 Amailserverkeepsshuttingdown.Theadministratorgetsanerrormessageovertemperature error.WhichofthefollowingshouldtheadministratorreplaceFIRST？（）

多项选择题 An administrator has shut down a server to install additional memory. When the administrator restarts the server after the upgrade, it times out. Which of the following could be the cause of the problem?（）