单项选择题
Which statement about RIPng is true?（）
A. RIPng allows for routes with up to 30 hops. B. RIPng is enabled on each interface separately. C. RIPng uses broadcasts to exchange routes. D. There can be only one RIPng process per router.
单项选择题 Which term describes the process of encapsulating IPv6 packets inside IPv4 packets?（）
单项选择题 What is the first 24 bits in a MAC address called?（）
单项选择题 When is it necessary to use a public IP address on a routing interface?（）
