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Exam 300-410 topic 1 question 53 discussion

Actual exam question from Cisco's 300-410
Question #: 53
Topic #: 1
[All 300-410 Questions]


Refer to the exhibit. The R1 and R2 configurations are:

The neighbor relationship is not coming up.
Which two sets of configurations bring the neighbors up? (Choose two.)
A.

B.

C.

D.

E.

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Suggested Answer: DE

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drxz
Highly Voted 2 years ago
De and E is correct ; The disable-connected-check was created precisely for the purpose of peering two directly connected routers on their loopbacks without using the ebgp-multihop https://ipwithease.com/using-disable-connected-check-in-cisco-bgp/
upvoted 7 times
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Carl1999
Highly Voted 3 years, 3 months ago
・About the operation of disable-connected-check When disable-connected-check is set, regardless of the referenced route Send the packet with TTL = 1. With disable-connected-check not set, The router that is trying to send a packet with TTL = 1 has the referenced route If it is "C" (direct connection), send a packet. "S" (Statec route) or "O" (OSPF) ,do not send packets.
upvoted 5 times
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[Removed]
Most Recent 10 months, 2 weeks ago
D & E are correct
upvoted 1 times
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vallzo
1 year ago
D & E are correct. If you configure TTL mulithop 2+ it would also work, and it implicit configures the disable connected check
upvoted 2 times
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conft
1 year, 9 months ago
D and E is the correct.
upvoted 1 times
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inteldarvid
1 year, 10 months ago
D and E anwser correct. I test in my lab. Its works
upvoted 1 times
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HungarianDish_111
2 years ago
Confirmed solution "D"+"E" in CML lab.
upvoted 2 times
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yonig
2 years, 1 month ago
the only problem i have is that the loopbakc is not directly connected - you need another hop. but the ttl security command works the opposite from the multi-hop command. so the value should be 254 or multu hop 2. am i wrong ? unless you have reachabiity using IGP.
upvoted 1 times
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Huntkey
2 years, 8 months ago
I didn't lab this but I think "ttl-security hops" have to be at least 2 for it to work. Therefore, the answer is correct.
upvoted 1 times
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Hack4
3 years, 3 months ago
The given answer is correct
upvoted 2 times
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[Removed]
3 years, 10 months ago
The given answer is correct
upvoted 3 times
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