多项选择题
the network administrator has been asked to give reasons for moving from ipv4 to ipv6. what are two valid reasons for adopting ipv6 over ipv4?（）
A. telnet access does not require a password B. nat C. no broadcast D. chanage of destination address in the ipv6 header E. chanage of source address in the ipv6 header F. autoconfiguration
多项选择题 Which three approaches can be used while migrating from an IPV4 addressing scheme to an IPV6 scheme.（）
多项选择题 Which two subnetworks would be included in the summarized address of 172.31.80.0 /20?（）
多项选择题 What two statistics appear in show frame-relay map output?（）
