单项选择题
An organization hires a contractor who only needs access to email and a group calendar. They donot need administrator access to the computer. Which VPN model is the most appropriate？（）
A. Thin Model B. Thick Client C. Port Forwarding D. Clientless Access E. Layer 3 Network Access
单项选择题 Whichoftheserecommendeddesignsprovidesthehighestavailability？（）
单项选择题 WhichoftheseisacorrectdescriptionofSSO？（）
单项选择题 WhichofthesestatementsiscorrectregardingSSOandCiscoNSF？（）
