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4A0-C01 · Question #340

Click on the exhibit. The operator of an IS-IS network wishes to have link metrics dynamically calculated in the same manner as OSPF. The router with system address 10.10.10.1 is one hop away on a…

The correct answer is A. CSPF must be enabled at head-end on fast reroute protected loose path LSPs. See the full explanation below for the reasoning.

Question

Click on the exhibit. The operator of an IS-IS network wishes to have link metrics dynamically calculated in the same manner as OSPF. The router with system address 10.10.10.1 is one hop away on a 1Gbps link Which of the following is correct?

Exhibit

4A0-C01 question #340 exhibit

Options

  • ACSPF must be enabled at head-end on fast reroute protected loose path LSPs
  • BFast reroute must first be enabled on the downstream routers.
  • CCSPF must be enabled on all downstream loose hop routers.
  • DGlobal revertive path optimization must be enabled so the path will be re-optimized around a failed node.

How the community answered

(32 responses)
  • A
    69% (22)
  • B
    19% (6)
  • C
    9% (3)
  • D
    3% (1)

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