单选题
There are three IS-IS routers on a Gigabit Ethernet segment: Router A, Router B, and Router C. Each router is configured in the same area and each routers Gigabit Ethernet interface is configured for Level 1-only. Router A is the Designated Intermediate System (DIS). Each routers IP address on that segment is: Router A: 10.1.1.1/24 Router B: 10.1.1.2/24 Router C: 10.2.2.1/26 Which statement is true about all the adjacencies that exist on that LAN?（）
发布日期：2022-07-02
A
No routers are adjacent with each other.
B
Only Router A and Router B are adjacent at Level 1.
C
Only Router A and Router B are adjacent at Level 2.
D
All three routers are adjacent with each other at Level 1.
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