Exam 350-801 topic 1 question 119 discussion

Actual exam question from Cisco's 350-801

Question #: 119
Topic #: 1

A network administrator with ID0123456789 has determined that a WAN link between two Cisco UCM clusters supports only 1 Mbps of bandwidth for voice traffic.
How many calls does this link support if G.711 as the audio codec is used?

A. 12
B. 13
C. 15
D. 16

Show Suggested Answer

Suggested Answer: A 🗳️
Reference:
https://getvoip.com/blog/2013/05/31/voip-codecs-bandwidth-your-call-quality/

by Omitted at May 12, 2022, 6:29 p.m.

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Gary1968

1 day ago

Selected Answer: A

1024\87.2=11.74. A would be the closest match

upvoted 1 times

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Omitted

1 year, 1 month ago

G.711 bandwidth per call should be 87.2 Kbps therefore i'd think the answer would be 11? what am i doing wrong?

upvoted 2 times

Piji

10 months ago

I think if you round it 1000/80=12.5, but if you want to be accurate, 1024x1024/87.2=12.036 which will be the same thing, that is closer to 12.

upvoted 4 times

WeNt48

3 months, 1 week ago

This is CAC question. Le'ts say we use 1 Mbps that is 1024. CUCM for g711 reduces 84 kbps from remaining bandwidth that was allocated. 1024/84 gives 12,19. This means CAC wouldn't allow 13th call to be placed, and options such as AAR could be triggered.

upvoted 3 times

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