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Exam 200-301 topic 1 question 366 discussion

Actual exam question from Cisco's 200-301
Question #: 366
Topic #: 1
[All 200-301 Questions]


Refer to the exhibit. An engineer is bringing up a new circuit to the MPLS provider on the Gi0/1 interface of Router 1. The new circuit uses eBGP and learns the route to VLAN25 from the BGP path.
What is the expected behavior for the traffic flow for route 10.10.13.0/25?

  • A. Traffic to 10.10.13.0/25 is load balanced out of multiple interfaces.
  • B. Traffic to 10.10.13.0/25 is asymmetrical.
  • C. Route 10.10.13.0/25 is updated in the routing table as being learned from interface Gi0/1.
  • D. Route 10.10.13.0/25 learned via the Gi0/0 interface remains in the routing table.
Show Suggested Answer Hide Answer
Suggested Answer: C 🗳️
by cdp_neighbor at Jan. 8, 2021, 10:29 a.m.

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cybernett
Highly Voted 3 years, 9 months ago
The correct answer is D Because when new route is learned by R1 it will be added to it's routing table via Gi0/1 But the previous still stays in the routing table which is learned via Gi0/0 (ospf) Hence we have two paths to reach 10.10.13.0/25 Cisco plays with words, read carefully. C is wrong because they used the word updated and not added. Updated means previous route is removed Which is not true , it stays in the table Hence D is perfect answer
upvoted 71 times
Secsoft
1 year, 3 months ago
The router will never allow multiple routing protocols to the same destination in its table. The correct answer is C.
upvoted 2 times
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[Removed]
1 year, 7 months ago
The answer is C. Routes That Must Win Twice | Cisco CCNA 200-301 https://www.youtube.com/watch?v=qU2qFU7NgNU
upvoted 1 times
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bootloader_jack
2 years, 11 months ago
I know that only the route with better administrative distance is installed in routing table. So, the ospf route will be replaced by ebgp route. Am I wrong?
upvoted 3 times
jahinchains
2 years, 7 months ago
10.10.13.0/25 is a different subnet ospf will stay on the routing table
upvoted 1 times
DixieNormus
2 years, 3 months ago
How is 10.10.13.0/25 a different subnet from 10.10.13.0/25?
upvoted 10 times
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BreezyNet
1 year, 12 months ago
this is true, experienced this in real life as I was configured two paths to a branch via 2 different ISP's, both routes where learned and kept in the routing table
upvoted 3 times
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cdp_neighbor
Highly Voted 3 years, 11 months ago
"The AD of eBGP (20) is smaller than that of OSPF (110) so the route to 10.10.13.0/25 will be updated as being learned from the new BGP path." - which means that C is the correct answer?
upvoted 33 times
raul_kapone
1 year, 3 months ago
Yes man. When the router learn different routes from different sources (protocols), the Lowes Administrative Distance of each protocol says what route would be added to the routing table. Like you said: AD of eBGP = 20 (Lowest) AD of OSPF = 110
upvoted 2 times
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sinear
3 years, 11 months ago
I think so too, though we find several answers to this in other sites. The comment below the question seems to point to C rather than D.
upvoted 6 times
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[Removed]
Most Recent 9 months ago
Selected Answer: C
it´s C
upvoted 1 times
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picho707
1 year, 1 month ago
Selected Answer: C
The answer is C because the router learns the routes from BGP. In addition, AS 1000 will have preference over AS 3000.
upvoted 1 times
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josop
1 year, 2 months ago
What the heck is a new circuit? I didn't even understand the question. Can anyone help?
upvoted 1 times
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[Removed]
1 year, 6 months ago
One more question that is not CCNA 200-301 related.
upvoted 4 times
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fmaquino
1 year, 6 months ago
Selected Answer: C
C (AD is 20)
upvoted 1 times
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gc999
1 year, 9 months ago
I see the official answer here is "D", but it uses the explanation in "C". That is "so the route to 10.10.13.0/25 will be updated as being learned from the new BGP path".
upvoted 1 times
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remoto
2 years ago
Selected Answer: D
The correct answer is "D" The keys is "learned"
upvoted 3 times
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arenjenkins
2 years, 1 month ago
beyond CCNA
upvoted 13 times
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clivebarker86
2 years, 2 months ago
i just tried with PT, configured OSPF + RIP, only OSPF is added to the table, with #no router ospf command, RIP added to the table, correct answer C
upvoted 2 times
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Murphy2022
2 years, 2 months ago
There is no Gi0/0 Interface so C must be correct.
upvoted 1 times
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PiotrMar
2 years, 3 months ago
Selected Answer: C
it is C
upvoted 1 times
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ZUMY
2 years, 3 months ago
Going with C:
upvoted 2 times
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[Removed]
2 years, 4 months ago
Selected Answer: C
C, no doubt; BGP AD 20, OSPF AD 110; The router decides whether or not to install the routes presented by the routing processes based on the administrative distance of the route in question. If this path has the lowest administrative distance to this destination (when compared to the other routes in the table), it's installed in the routing table. If this route isn't the route with the best administrative distance, then the route is rejected.
upvoted 5 times
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TA77
2 years, 5 months ago
The explaination doesn't match the selected answer. I guess the answer D was selected by mistake instead of C.
upvoted 2 times
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DARKK
2 years, 7 months ago
Selected Answer: C
An OSPF(110 AD) path for VLAN 25 (10.10.13.0 /25) exits via Gi0/0, However an eBGP (20 AD) Path is being added via Gi0/1. Answer is C. Read the question carefully, and look at the image given. The eBGP path via Gi0/1 is chosen because it has a lower AD.
upvoted 3 times
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C (25%)
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