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Exam 300-815 All Questions

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Exam 300-815 topic 1 question 25 discussion

Actual exam question from Cisco's 300-815
Question #: 25
Topic #: 1
[All 300-815 Questions]

A user in location X dials an extension at location Y. The call travels through a QoS-enabled WAN network, but the user experiences choppy or clipped audio.
What is the cause of this issue?

  • A. missing Call Admission Control
  • B. codec mismatch
  • C. ptime mismatch
  • D. phone class of service issue
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️

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Chosen Answer:
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thili
Highly Voted 4 years, 4 months ago
Answer should be A
upvoted 15 times
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movalleuu
Highly Voted 3 years, 10 months ago
Answer should be A, codec mismatch generally drops the call
upvoted 8 times
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b3532e4
Most Recent 3 days, 2 hours ago
Selected Answer: A
A. missing Call Admission Control
upvoted 1 times
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jarcoman99
1 month, 1 week ago
Selected Answer: D
Question states that the WAN is QoS enabled. Answers B and C will not have audio. Answer A still doesn't fix the real root cause. Answer is D, because CoS setting will properly tag audio traffic so that it is prioritized over the WAN.
upvoted 1 times
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b3532e4
2 months, 3 weeks ago
A. missing Call Admission Control
upvoted 1 times
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Piji
5 months ago
Selected Answer: B
The question asks about the cause of choppy or clipped audio when a user in location X calls an extension at location Y over a QoS-enabled WAN network. The most likely cause of this issue is: B. codec mismatch Thus, B. codec mismatch is the most plausible cause of choppy or clipped audio in this scenario.
upvoted 1 times
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basscov
2 years, 7 months ago
I think answer D. Because A is something that could help to overcome the issue but it's not a route cause of it
upvoted 1 times
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timmyz
3 years, 4 months ago
Maybe D ? if the phone is not set for trust then there is no QoS markings on the phone which in turn never get prioritized across the WAN. even though QoS is enabled on the WAN
upvoted 2 times
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XalaGyan
3 years, 9 months ago
Best Answer would have been if there was something related to QoS misconfigured or missing but Call Admission Control is the closest it gets to QoS. So i agree with you its (A)
upvoted 4 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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