Cisco 300-815 Exam - Topic 1 Question 82 Discussion

Actual exam question for Cisco's 300-815 exam

Question #: 82
Topic #: 1

Refer to the exhibit.

The Cisco Unified Border Element receives an INVITE matching inbound dial peer 5002. The outbound dial peer supports only iLBC. and a Local Transcoding Interface is allocated. Based on the configuration and SDP from the INVITE message, which codec is chosen by Cisco Unified Border Element for the inbound call leg?

AG.711 A-law

BG.711 U-law

CG.729r8

DG.729br8

Show Suggested Answer

Suggested Answer: C

by Lashandra at Mar 05, 2024, 04:25 PM

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Selma

9 months ago

G.711 A-law is definitely the right choice for this scenario.

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Goldie

9 months ago

Wait, why not iLBC? That’s what the outbound dial peer supports!

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Verda

10 months ago

I thought it might be G.729, but A-law makes sense.

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Shelia

10 months ago

Totally agree, A-law is the standard here!

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Hortencia

10 months ago

The codec chosen will be G.711 A-law.

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Emeline

10 months ago

If I recall correctly, the local transcoding interface should allow for G.711, but I can't remember if it prioritizes A-law or U-law in this case.

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Jamal

11 months ago

I thought iLBC was only used for specific scenarios, so I'm a bit confused about how it relates to G.711 options here.

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Gregoria

11 months ago

This question feels familiar; I think we practiced a similar one where the codec preference was based on the dial peer settings.

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Harley

11 months ago

I remember something about codec negotiation, but I'm not sure if iLBC would default to G.711 or if it would pick something else.

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Lamar

11 months ago

I think I've got this. Since the outbound dial peer supports only iLBC, and a Local Transcoding Interface is allocated, the Cisco Unified Border Element will choose iLBC as the codec for the inbound call leg.

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Shannon

11 months ago

I'm a bit confused here. The question mentions the outbound dial peer supports only iLBC, but the options don't include iLBC. I'll need to double-check the details to make sure I understand the scenario correctly.

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Joanne

11 months ago

Okay, let me think this through step-by-step. The inbound dial peer supports iLBC, and a Local Transcoding Interface is allocated, so the codec choice should be based on that information.

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Raymon

11 months ago

Hmm, this looks like a tricky one. I'll need to carefully review the configuration details and SDP information to determine the codec chosen by the Cisco Unified Border Element.

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Wade

11 months ago

I feel confident that the answer is geo-locations. That's the feature that allows you to configure locations for Webex deployments.

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Karan

11 months ago

Hmm, I'm not sure about this one. The options don't seem to directly match the question. I'll have to review my notes on app permissions and object permissions to see if I can figure this out.

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Annalee

11 months ago

Okay, let's see. ACK is typically used in TCP/IP networks, so I'm guessing the answer has something to do with that. I'll try to eliminate the options that don't seem relevant.

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Helga

11 months ago

I'm a little confused on this one. I'm not sure if the answer is B or D. Both of those options seem a bit unusual for identity validation. I'll have to think about this one a bit more before making a decision.

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Allene

1 year ago

I bet the Unified Border Element is just going to choose the most cost-effective codec it can transcode to iLBC. It's probably not going to care about audio quality when it can save a few pennies.

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Berry

1 year ago

User4: I think G.729br8 could be the codec chosen by the Unified Border Element.

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Marti

1 year ago

User3: Maybe it will choose G.711 U-law for cost-effectiveness.

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Penney

1 year ago

User2: I disagree, I believe it will go for G.729r8.

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Stevie

1 year ago

User1: I think it will choose G.711 A-law.

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Bettye

1 year ago

Wait, what? Isn't iLBC a wideband codec? I thought the Unified Border Element would choose a wideband codec to take advantage of the higher quality. This question is tripping me up!

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Ricarda

1 year ago

I think the answer is C) G.729r8. The question doesn't mention anything about the INVITE message preferring a specific codec, so the Unified Border Element will likely choose the default codec that it can transcode to iLBC.

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Ula

1 year ago

I'm not so sure about that. The question also says a Local Transcoding Interface is allocated, so maybe the Unified Border Element will choose a different codec that it can transcode to iLBC.

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Lisbeth

1 year ago

User 3: That could be a possibility considering the transcoding requirement.

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Timothy

1 year ago

User 2: Maybe it will go with G.729r8 then.

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Natalie

1 year ago

User 1: I think it might choose a different codec for transcoding.

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Katy

1 year ago

Hmm, this is tricky. The question mentions that the outbound dial peer supports only iLBC, so I'm guessing the Unified Border Element will choose that codec for the inbound call leg.

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