单项选择题
A. path cisco.com B. debug cisco.com C. trace cisco.com D. traceroute cisco.com
Which line from the output of the show ip interface com...
单项选择题Which line from the output of the show ip interface command indicates a layer 1 problem?（）
A. Serial0/1 is up, line protocol is down B. Serial0/1 is down, line protocol is down C. Serial0/1 is up, line protocol is up D. Serial0/1 is administratively down, line protocol is down
Which statement about IPv6 is true?（）A. Addresses are n...
单项选择题Which statement about IPv6 is true?（）
A. Addresses are not hierarchical and are assigned at random. B. Only one IPv6 address can exist on a given interface. C. There are 2.7 billion addresses available. D. Broadcasts have been eliminated and replaced with multicasts.
Which statement about RIPng is true?（）A. RIPng allows f...
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.
