单项选择题
A. show clns database
B. show isis database detail
C. show clns database detail
D. show isis database extensive
单项选择题 Which CLI command displays the IS-IS level used by each interface?（）
单项选择题 Which CLI command shows if the router has formed any IS-IS adjacencies?（）
单项选择题 You would like to operate IS-IS on interface atm 6/0.33 with an IP address of 192.168.1.1/24. Which set of commands accomplishes this?（）