单项选择题
Which of the following is a way to protect server operating systems from a short term contractor？（）
A. Biometric devices B. Limited logon hours C. Mantraps D. Rack doors
多项选择题 Whichofthefollowingareexamplesofphysicalsecuritymeasures？（）
单项选择题 WhichofthefollowingistheBESTsupportchannelforserversoftwareandhardware？（）
单项选择题 WhichofthefollowingistheFIRSTcourseofactionbeforeimplementingachangetoaserver？（）
