多项选择题 Whichofthefollowingarebenefitstoservervirtualization？（）

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?（）