多项选择题
What are three features of the IPV6 protocol？（）
A.complicated header B.plug-and-play C.no broadcasts D.checksums E.optional IPsec F.autoconfiguration
单项选择题 Which of these represents an IPv6 link-local address？（）
多项选择题 Which two statements about static NAT translations are true？（）
单项选择题 Which IPsec security protocol should be used when confidentiality is required？（）
