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Exam 200-301 topic 1 question 429 discussion

Actual exam question from Cisco's 200-301
Question #: 429
Topic #: 1
[All 200-301 Questions]


Refer to the exhibit. An engineer configured the New York router with static routes that point to the Atlanta and Washington sites. Which command must be configured on the Atlanta and Washington routers so that both sites are able to reach the loopback2 interface on the New York router?

  • A. ipv6 route::/0 Serial 0/0/0
  • B. ipv6 route::/0 Serial 0/0/1
  • C. ipv6 route:0/0 Serial 0/0/0
  • D. ip route 0.0.0.0 0.0.0.0 Serial 0/0/0
  • E. ipv6 route::/0 2000::2
Show Suggested Answer Hide Answer
Suggested Answer: A 🗳️
Reference:
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_pi/configuration/xe-3s/iri-xe-3s-book/ip6-route-static-xe.html#GUID-85796C3A-3143-4DF7-B9D0-
8EC87D0DB08B
by bwg at June 3, 2021, 1:58 a.m.

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kokoyul
Highly Voted 3 years, 3 months ago
The static routes are: Network + Interface (Source interface) or Next Hop (IP Address Neighbor). So, you have 4 possibilities: Atlanta = ipv6 route::/0 2012::2/126 or Atlanta = ipv6 route::/0 Serial 0/0/0 _______________________________________ Washington= ipv6 route::/0 2023::2/126 or Washington= ipv6 route::/0 Serial 0/0/0
upvoted 22 times
Pkard
3 years, 1 month ago
Agree. When you use a interface as the next hop, it is the interface of the sending router.
upvoted 3 times
redivivo
2 years, 7 months ago
when you use an interface as the next hop, it's the interface of the next router, not the sending one. As kokoyul stated : Network (destination) + Exit interface (of the sending router) OR Network (destination) + Next hop (ip address of ingress interface of the neighbor router, the next one .
upvoted 4 times
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aike92
Highly Voted 2 years, 12 months ago
IMO i would imagine the actual question stating "(Choose two)" at the end to close out the question leaving the answers to be A &' B.. But if the question is given as-is &' i could only choose One answer, E is the only choice that can apply to BOTH Atlanta &' Washington Routers.
upvoted 6 times
Shamwedge
2 years, 11 months ago
This was my logic and why I chose E
upvoted 6 times
reagan_donald
2 years, 11 months ago
First router must know how to reach the loopback interface....1 option is to use next-hop, 2nd option is to use his egress interface (exit interface) A is correct
upvoted 6 times
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MEDO95
2 years ago
totally same as u. Cisco play us hard
upvoted 2 times
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3040636
Most Recent 2 months, 3 weeks ago
Shouldn't there be two answers for this question? for Atlanta the next hop is s0/0/0 so the route is ipv6 route::/0 s0/0/0. and for Washington the next hop is s0/0/1 so the route is ipv6 route ::/0 s0/0/1.This question is a bit confusing.
upvoted 2 times
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[Removed]
10 months ago
Selected Answer: A
A is correct
upvoted 2 times
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923ffda
10 months, 1 week ago
why that isn't c?
upvoted 1 times
Macarong
5 days, 22 hours ago
they dont use ipv4 address
upvoted 1 times
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Amr_001
1 year, 4 months ago
I believe E is the correct answer because if you set outgoing int in the ipv6 route, you need to mention the next-hop link-local address
upvoted 2 times
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[Removed]
2 years, 3 months ago
Are you guys sure its not A (for the Atlanta route) and B (for the Washington route)? Because i thought the next hop for Atlanta would be Serial 0/0/0 and the next hop for Washington would be Serial 0/0/1. I may be wrong tho.
upvoted 3 times
A7med97
2 years, 2 months ago
s0/0/0, its exit interface for both Atlanta and Washington
upvoted 3 times
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whojabagooya
2 years, 6 months ago
A is the correct answer. The answer to this question is in the illustration of question # 209. The answer is the static default route of both routers.
upvoted 2 times
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Mozah
3 years, 1 month ago
ipv6 route ::/0 out interface OR ipv6 route ::/0 next hop IP address In this case the out int for Atlanta and Washington to New york is s0/0/0 means A its correct
upvoted 2 times
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ProgSnob
3 years, 1 month ago
I believe it's A. There's no ip route command that calls out the Loopback 2 address directly so we need to use ip route ::/0. The exit interface for each of the routers is Serial 0/0/0.
upvoted 3 times
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Hodicek
3 years, 1 month ago
I Would say A and B , as we can't use the same command for both 2 routers
upvoted 4 times
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dave1992
3 years, 3 months ago
E should be the correct answer. a default static route of ::/0 to reach 2000::2 which is the loopback of the NY router. trying to make sense of the answer givin is wrong. A is not the correct answer. otherwise B would also be the correct answer.
upvoted 4 times
Nicocisco
2 years, 10 months ago
How Atlanta & Washinton know where is 2002::2? Just New-york has been was configured
upvoted 3 times
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CozTurk
3 years, 3 months ago
I am confused with how the answer is A here - Are we sure this is not a typo or a question requiring 2 answers? Can someone please elaborate? The question is asking to enter the static routes from the perspective of the ATLANTA and WASHINTON routers hence making the next hop interfaces S0/0/1 for Washington and S0/0/0 for Atlanta. Shouldn't this mean A and B are correct?
upvoted 2 times
reagan_donald
2 years, 11 months ago
both of them is using same command, because both of them same egress interfaces, Default route is as well static route.
upvoted 1 times
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Asymptote
3 years, 5 months ago
it point the ::/0 using both Alanta and Washington serial interface S0/0/0 , so both of them using the same command .
upvoted 4 times
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Dibilili
3 years, 6 months ago
If A is correct, why B isn`t?
upvoted 3 times
CiscoTerminator
3 years, 5 months ago
S0/0/1 is not the exit interface facing New York on both routers hence its wrong.
upvoted 1 times
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bwg
3 years, 7 months ago
Why E is wrong?
upvoted 3 times
CiscoTerminator
3 years, 5 months ago
E is wrong becoz its not the correct next hop IP for both routers. Qstn requires one command that works for both routers.
upvoted 1 times
IvanEaxm171
1 week, 4 days ago
Why. Questoin state: both sites are able to reach the loopback2 interface on the New York router. According to the questoin, lookback2 of new york is 2000::2/128. So, Answer E - ipv6 route::/0 2000::2, is a also a correct answser.
upvoted 1 times
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C (25%)
B (20%)
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