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Exam 300-420 All Questions

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Exam 300-420 topic 1 question 137 discussion

Actual exam question from Cisco's 300-420
Question #: 137
Topic #: 1
[All 300-420 Questions]

An architect must address sustained congestion on the access and distribution uplinks of a network. QoS has already been implemented and optimized, but it is no longer effective in ensuring optimal network performance. Which two solutions should the architect use to improve network performance. (Choose two.)

  • A. Configure selective packet discard to drop noncritical network traffic.
  • B. Bundle additional uplinks into logical EtherChannels.
  • C. Utilize random early detection to manage queues.
  • D. Implement higher-speed uplink interfaces.
  • E. Reconfigure QoS based on the IntServ model.
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Suggested Answer: BD 🗳️

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Marinheiro
1 year, 3 months ago
Selected Answer: BD
B and D are correct.
upvoted 1 times
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andrewChan
2 years ago
Selected Answer: BD
As the question mentioned that QoS has been implemented and optimized, I can assumed A and C had been done. So I prefer B & D to upgrade the link and add new uplinks
upvoted 4 times
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Eards
2 years ago
Selected Answer: AC
AC would love to say BD throw more bandwidth at it but make most questions on QOS pointless...
upvoted 1 times
26d13e9
6 months, 2 weeks ago
Since we are talking about access and distribution switches, these are normally in close proximity and adding links should not be much of an issue. From that point, BD. I completely see your point.....but may be at the core level where adding more may be hard.
upvoted 1 times
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namibdigger
2 years, 3 months ago
Selected Answer: BD
I went for B and D straight away because the question states that 'QoS has already been... optimized' which rules out any more fiddling with QoS. Dropping noncritical network traffic (A) to me is far from being optimal network performance
upvoted 1 times
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zlimvos
2 years, 4 months ago
Selected Answer: AC
For me also A and C make sense.
upvoted 1 times
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cwoolie
2 years, 7 months ago
I have answers as A and C???
upvoted 1 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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