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4A0-C01 · Question #26

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

The correct answer is D. An L1/L2 router sets the ATT bit in L1 LSPs to identify itself as an L1 router. See the full explanation below for the reasoning.

Question

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

Options

  • AAn L1/L2 router can have neighbors 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 its L1 neighbors.
  • DAn L1/L2 router sets the ATT bit in L1 LSPs to identify itself as an L1 router.

How the community answered

(15 responses)
  • A
    7% (1)
  • B
    13% (2)
  • D
    80% (12)

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Full 4A0-C01 Practice