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Exam 300-420 topic 1 question 45 discussion

Actual exam question from Cisco's 300-420
Question #: 45
Topic #: 1
[All 300-420 Questions]

A company with multiple service providers wants to speed up BGP convergence time in the event a failure occurs with their primary link. Which approach achieves this goal and does not impact router CPU utilization?

  • A. Utilize BFD and tune the multiplier to 50
  • B. Lower the BGP hello interval
  • C. Decrease the BGP keepalive timer
  • D. Utilize BFD and keep the default BGP timers
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Suggested Answer: D 🗳️

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Chosen Answer:
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goku2020
Highly Voted 3 years, 4 months ago
Correct is D
upvoted 22 times
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jn4voip
Highly Voted 3 years, 4 months ago
Decreasing the BGP timer would increase the hellos, thereby increasing CPU use
upvoted 10 times
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minon_bob
Most Recent 10 months, 2 weeks ago
Selected Answer: D
Internet is not a stable network, setting the holdtimer too low will be bad to router CPU as the route will keep on withdrawing and adding.
upvoted 1 times
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Eards
1 year, 6 months ago
Selected Answer: D
Voting D - Agree with the rest
upvoted 4 times
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cwoolie
2 years, 1 month ago
Answer is. D
upvoted 1 times
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cwoolie
2 years, 1 month ago
I have D as answer..Please correct
upvoted 1 times
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mazinhoo
2 years, 1 month ago
correct is D, "because some parts of BFD cab be distributed to the data plane , it can be less CPU-intensive than the reduced protocol timers , which exist wholly at the control plane"
upvoted 1 times
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roganjosh
2 years, 1 month ago
Selected Answer: D
Answer is D, Leaving a Vote
upvoted 3 times
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rgigs
2 years, 4 months ago
Correct is D
upvoted 1 times
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John_Aung
2 years, 7 months ago
I would like to know what is the correct answer? please ?
upvoted 1 times
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Xavi07
2 years, 9 months ago
the answer is D
upvoted 1 times
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luisjuradoledesma
3 years, 2 months ago
I think the answer should be D - the issue is to speed up BGP convergence time in the event a FAILURE occurs and keep the CPU utilisation low - then BFD is the solution
upvoted 5 times
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poetmj
3 years, 3 months ago
I think the Answer is D. BFD can be configured with subsecond convergence
upvoted 5 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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