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Exam 200-301 topic 1 question 403 discussion

Actual exam question from Cisco's 200-301
Question #: 403
Topic #: 1
[All 200-301 Questions]

A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common
Ethernet link.

The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic, what is the cause of this problem?

  • A. The OSPF area is not configured properly.
  • B. The priority on R1 should be set higher.
  • C. The cost on R1 should be set higher.
  • D. The hello and dead timers are not configured properly.
  • E. A backup designated router needs to be added to the network.
  • F. The OSPF process ID numbers must match.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
In OSPF, the hello and dead intervals must match and here we can see the hello interval is set to 5 on R1 and 10 on R2. The dead interval is also set to 20 on R1 but it is 40 on R2.
by Talloo at Feb. 15, 2021, 9:52 a.m.

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Talloo
Highly Voted 3 years, 10 months ago
By the way, the interfaces on both routers have the same IP address
upvoted 70 times
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[Removed]
Most Recent 9 months ago
Selected Answer: D
D is correct
upvoted 1 times
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Ineng
1 year, 3 months ago
Not in the options but both IP of the interfaces are the same. Plus hello and dead timer are different.
upvoted 2 times
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MonsieurP
2 years ago
What about IP addresses on both e0 interfaces of the 2 routers? Is it correct both be the same?
upvoted 2 times
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DoBronx
2 years, 1 month ago
Both have same IP, both are DR, shame on cisco
upvoted 4 times
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ScorpionNet
2 years, 7 months ago
D is right because the hello and dead interval needs to match in order to maintain neighbor adjacency
upvoted 1 times
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dipanjana1990
2 years, 8 months ago
First of all both the routers have same IP address. As well as both belong to same area 0 yet both of them are DR. How come its possible? There are more than 1 reason for these two routers to form ospf neighborship, let alone adjacency. But since there are some parameters which are need to matched in order to form ospf neighborship and timers mismatch is one of them. Thus, option D is correct.
upvoted 3 times
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Belinda
2 years, 10 months ago
The hello timer, dead and wait time differs on both routers, thereby causing the adjacency not to form
upvoted 1 times
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Belinda
2 years, 10 months ago
The hello timer interval differs on both router which is the reason why the adjacency did form a relationship.
upvoted 1 times
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CiscoTerminator
3 years, 4 months ago
Anyone notice that before we even talk about OSPF, the two routers have the same IP address. Definitely an error there.
upvoted 2 times
Cisna
3 years, 3 months ago
The good thing is, its not part of the multiple choices
upvoted 2 times
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4guysgaming
3 years, 5 months ago
I also don't see a BDR. The output even says no backup Designated Router on this network?
upvoted 2 times
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Micah7
3 years, 6 months ago
Agreed- same IP address. This was the first thing I noticed as well, but of course did not see it as an answer option so had to move on to another possibility
upvoted 4 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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