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Exam 200-301 topic 1 question 445 discussion

Actual exam question from Cisco's 200-301
Question #: 445
Topic #: 1
[All 200-301 Questions]


Refer to the exhibit. An engineer assumes a configuration task from a peer. Router A must establish an OSPF neighbor relationship with neighbor 172.1.1.1. The output displays the status of the adjacency after 2 hours. What is the next step in the configuration process for the routers to establish an adjacency?

  • A. Configure router A to use the same MTU size as router B.
  • B. Configure a point-to-point link between router A and router B.
  • C. Set the router B OSPF ID to the same value as its IP address.
  • D. Set the router B OSPF ID to a nonhost address.
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Suggested Answer: A 🗳️
by Wilasky at May 5, 2022, 7:30 a.m.

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Wilasky
Highly Voted 2 years, 9 months ago
In Exstart/Exchange State, when attempting to run OSPF between a Cisco router and another vendor's router. If the router with the higher MTU sends a packet larger that the MTU set on the neighboring router, the neighboring router ignores the packet.
upvoted 34 times
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AbdullahMohammad251
Highly Voted 1 year, 3 months ago
Selected Answer: A
We can see from the figure that router A and B are stuck in the exchange/extart state and this happens when we have MTU size mismatch. So option A is correct. https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/13684-12.html#neighbors
upvoted 9 times
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orenoren
Most Recent 1 year, 1 month ago
its ccnp encor material
upvoted 2 times
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NewJeans
1 year, 3 months ago
Selected Answer: A
the answer is A
upvoted 1 times
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picho707
1 year, 3 months ago
Selected Answer: B
I am leaning towards b due to the fact that I have configured point-to-point connections in the past. It is not as easy as typing the encapsulation ppp command in the subinterface.
upvoted 2 times
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Dutch012
1 year, 11 months ago
I think it's A. the interface is using serial type, and the default configuration for OSPF is broadcast network type, so we must change the network type to point-to-point since it uses a serial connection
upvoted 4 times
Dutch012
1 year, 11 months ago
P-to-P is enabled by default in serials interfaces, I agree with Wilasky
upvoted 6 times
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C (25%)
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