Two VPN peers are negotiating IKE phase 1 using main mode. Which message pair in the negotiation contains the phase 1 proposal for the peers？（）A、message 1 and 2B、message 3 and 4C、message 5 and 6D、message 7 and 8
题目
Two VPN peers are negotiating IKE phase 1 using main mode. Which message pair in the negotiation contains the phase 1 proposal for the peers？（）
- A、message 1 and 2
- B、message 3 and 4
- C、message 5 and 6
- D、message 7 and 8
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参考答案和解析
正确答案:B