单项选择题

Two Level 2 routers are exchanging Hello packets with different Area IDs. What occurs between these routers?（）

A. An Adjacency forms.
B. An Adjacency does not form.
C. An Adjacency forms but traffic is not forwarded.
D. No IS-IS PDUs are sent.

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单项选择题

What command would you use to view an IS-IS adjacency?（）

A. show iso neighbor
B. show isis neighbor
C. show iso adjacency
D. show isis adjacency

单项选择题

How do you enable interface fe-0/0/0 under the [edit protocols isis] level to form both a Level 1 and Level 2 adjacency?（）

A. set interface fe-0/0/0.0
B. set interface fe-0/0/0.0 all level
C. set interface fe-0/0/0.0 level 3 enable
D. set interface fe-0/0/0.0 level 1 level 2

单项选择题

How often are IS-IS Hello packets transmitted?（）

A. 3 seconds for DIS; 9 seconds for non-DIS
B. 9 seconds for DIS; 3 seconds for non-DIS
C. 10 seconds for DIS; 3 seconds for non-DIS
D. 10 seconds for all routers