Which two statements are correct regarding IS-IS？（）A、Routers maintain a single link-state database per area.B、Routers maintain a separate Level 1 link-state database.C、Routers maintain a separate Level 2 link-state database.D、Routers maintain a single Lev - 题多多

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题目

Which two statements are correct regarding IS-IS？（）

A、Routers maintain a single link-state database per area.
B、Routers maintain a separate Level 1 link-state database.
C、Routers maintain a separate Level 2 link-state database.
D、Routers maintain a single Level 1 link-state database per area.

参考答案和解析

正确答案:B,C

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