Various security measures are recommended EXCEPT ________.
[A] turning off network services
[B] employing a full-inspection firewall
[C] making sure that servers and applications are patched
[D] eliminating all unneeded programs
正确答案：A
其依据是Turnoffunnecessarynetworkservices即关闭不必要的网络服务而不是关闭所有的网络服务一字之差却相去甚远要注意辨析
