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4A0-101 · Question #218

In IS-IS, which of the following regarding an L1/L2 router is FALSE?

The correct answer is C. An L1/L2 router advertises its L2 routes to other L1 routers in the same area. See the full explanation below for the reasoning.

Question

In IS-IS, which of the following regarding an L1/L2 router is FALSE?

Options

  • AAn L1/L2 router can have adjacencies with routers in different areas.
  • BAn L1/L2 router calculates separate SPF trees for the Level 1 and Level 2 topology.
  • CAn L1/L2 router advertises its L2 routes to other L1 routers in the same area.
  • DAn L1/L2 router sets the ATT bit in L1 LSPs to indicate that it has routes to other areas.

How the community answered

(27 responses)
  • A
    19% (5)
  • B
    7% (2)
  • C
    70% (19)
  • D
    4% (1)

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