JN0-649: Enterprise Routing and Switching, Professional (JNCIP-ENT)Demo

By Juniper · Question Mode

QuestionQ8

Interior Gateway Protocols (IGPs)

Click the Exhibit button.

You are using OSPF as your IGP. The interfaces that connect the two routers are in the ExStart state, and you observe that part of the configuration is incorrect.

With reference to the exhibit, which statement is correct?

Question Image

  • A The subnet mask is incorrect.
  • B The MTU setting are incorrect.
  • C The interface type is incorrect.
  • D The IP addresses are incorrect.
Explanation

The two OSPF interfaces have different MTU values: 1500 on R2 and 9164 on R1. OSPF includes the interface MTU in Database Description packets; a mismatch can cause neighbors to remain in the ExStart state because the database-exchange process cannot proceed.

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