单项选择题
An administrator needs to add fault tolerance capabilities to a server. Which of the following is the BEST solution to accomplish this?（）
A. Move the architecture from 32-bit to 64-bit. B. Install a PBX card. C. Install a second NIC card. D. Install a fail-over cable.
单项选择题 WhichofthefollowingistheBESTsequencetobaremetalrestoreaserver？（）
单项选择题 WhichofthefollowingportsshouldbeallowedthroughafirewallforTelnettofunction？（）
单项选择题 Which of the following expansion cards would be necessary to increase fault tolerance in a VoIP server?（）
