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Cisco 350-801 Exam - Topic 9 Question 76 Discussion

Refer to the exhibit.Which codec should an engineer select for a call made between "Dallas-REG' & "Austin-REG'?
D) G.729
A) MP4A-LATM
B) G.711
C) OPUS
G) 729
G) 711 OPUS MP4A-LATM The codec preference list for the 'Austin-REG' region is 'Factory Default low loss'. This list includes the following codecs in order of preference:
G) 729
G) 711 OPUS MP4A-LATM Since both regions have the same codec preference list, the codec that will be used for a call made between 'Dallas-REG' and 'Austin-REG' is G.729.
G) 729 is a narrowband speech codec that was developed by the ITU-T in 1988. It is a low-bitrate codec that provides good quality speech at a bitrate of 8 kbps. G.729 is widely used in VoIP applications and is the default codec for many VoIP systems.
G) 711 is a wideband speech codec that was developed by the ITU-T in 1972. It is a high-bitrate codec that provides excellent quality speech at a bitrate of 64 kbps. G.711 is not as widely used as G.729 due to its high bitrate requirements. OPUS is a lossy audio codec that was developed by the IETF in 2012. It is a low-bitrate codec that provides good quality speech at a bitrate of 6 kbps. OPUS is widely used in VoIP applications and is the default codec for many VoIP systems. MP4A-LATM is a lossy audio codec that was developed by the IETF in 1999. It is a high-bitrate codec that provides excellent quality speech at a bitrate of 24 kbps. MP4A-LATM is not as widely used as G.729 or OPUS due to its high bitrate requirements.

Cisco 350-801 Exam - Topic 9 Question 76 Discussion

Actual exam question for Cisco's 350-801 exam
Question #: 76
Topic #: 9
[All 350-801 Questions]

Refer to the exhibit.

Which codec should an engineer select for a call made between "Dallas-REG' & "Austin-REG'?

Show Suggested Answer Hide Answer
Suggested Answer: D

The codec preference list for the 'Dallas-REG' region is 'Factory Default low loss'. This list includes the following codecs in order of preference:


by Therese at May 12, 2024, 10:58 PM

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Jaclyn
9 months ago
Are we sure G.729 is the best choice? Seems outdated.
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Billye
9 months ago
G.711 is too high bitrate for this scenario.
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Pearlene
10 months ago
Wait, why not OPUS? It’s newer and has lower bitrate!
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Leana
10 months ago
Totally agree, G.729 is solid for VoIP!
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Viki
10 months ago
G.729 is the codec for Dallas and Austin calls.
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Novella
10 months ago
I recall that G.729 is often preferred for low bandwidth, but I wonder if there are exceptions in specific cases.
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Vannessa
11 months ago
I practiced a similar question where G.711 was mentioned, but I believe G.729 is more efficient for VoIP calls.
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Lanie
11 months ago
I think both regions have the same codec list, so G.729 should be the right answer, but I need to double-check that.
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Cora
11 months ago
I remember studying the codec preferences, but I'm not entirely sure if G.729 is the best choice for this scenario.
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Donte
11 months ago
Hmm, I need to review my knowledge on audio codecs. There are a lot of options here, but I think G.729 is the way to go since it's the default low-loss codec for both regions.
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Tanja
11 months ago
The question is straightforward - the codec preference list is the same for both regions, so the common codec between them is G.729. This is the correct answer.
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Cornell
11 months ago
Based on the information provided, G.729 seems to be the optimal codec for this call between Dallas-REG and Austin-REG. It's a low-bitrate codec that provides good quality speech, which aligns with the "Factory Default low loss" preference.
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Simona
11 months ago
I'm a bit confused by all the different codec options. Can someone explain the key differences between them and why G.729 would be the best choice here?
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Glendora
11 months ago
The codec preference list for both regions is the same, so the codec that will be used is G.729.
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Catherin
11 months ago
Hmm, I'm a bit confused by the details here. I'll need to make sure I understand the requirements and the context before I can decide on the right query.
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Huey
11 months ago
This one seems straightforward. I think the answer is vSphere Motion, which allows live migration of VMs between hosts without downtime.
upvoted 0 times
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Huey
11 months ago
I'm a bit confused here. Wouldn't "umount /dev/sdb3" just unmount the partition, not erase the data?
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