多项选择题
A.Operating system standardization
B.Increased hardware utilization
C.Increase of unused resources
D.Ease of administration
E.Simplification of disaster recovery
F.Ease of new server deployment
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？（）
单项选择题 Which of the following protocols is responsible for the resolution of IP addresses to MAC addresses?（）
单项选择题 Whichofthefollowingserverrolessendsoutatimesignalforclientstosynchronizewithaclock？（）