单项选择题
Which protocol family is required prior to assigning an IP address to an interface?（）
A.family ip B.family ip6 C.family inet D.family inet4
单项选择题 Which command will save the current active configuration as the rescue configuration?（）
单项选择题 Which command would correctly set a routers date and time?（）
单项选择题 Which commnand would correctly define a routers host-name?（）
