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
正确答案:D
答案解析:有
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