Cisco Exam 100-890 Topic 1 Question 58 Discussion

Actual exam question for Cisco's 100-890 exam

Question #: 58
Topic #: 1

[All 100-890 Questions]

How do digital voice networks function?

AThe voice gateway can perform only a compression function

BBoth a digital signal and noise are boosted by amplifiers

CThe analog signal from the telephone is digitized into PCM signals by the voice codec

DDigital voice networks convert the sound waves into electrical signals that are analogous to the original sound waves

Show Suggested Answer

Suggested Answer: D

by Pete at Jan 09, 2025, 05:48 PM

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Rodrigo

3 months ago

I'm not sure about the other options, but option A is definitely wrong. The voice gateway can do more than just compression.

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France

3 months ago

Digital voice networks convert the sound waves into electrical signals, so option D seems to be the most accurate description.

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Elvis

3 months ago

Yes, that's right. The analog signal from the telephone is digitized into PCM signals by the voice codec.

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Corrie

3 months ago

I think option D is correct, digital voice networks convert sound waves into electrical signals.

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Solange

4 months ago

Ha! Option B is clearly the way to go. Boosting both the digital signal and noise - what could possibly go wrong?

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Venita

3 months ago

User 3: I think Option C makes more sense, digitizing the analog signal into PCM signals seems more reliable.

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Gerry

3 months ago

User 2: Gerry is right, boosting noise along with the digital signal doesn't sound like a good idea.

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Pa

3 months ago

User 1: Option B sounds like a disaster waiting to happen.

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Cortney

4 months ago

So, digital voice networks don't just boost both digital signal and noise like in option B?

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Arminda

4 months ago

I think option C is the correct answer. The analog signal from the telephone is indeed digitized into PCM signals by the voice codec.

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Fabiola

3 months ago

Digital voice networks have definitely revolutionized communication.

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Norah

3 months ago

That's true, the voice codec plays a crucial role in this process.

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Linwood

3 months ago

I think it makes sense, the analog signal needs to be digitized.

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Corrina

3 months ago

I agree, option C is correct.

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Sheridan

4 months ago

Yes, that's correct. The analog signal from the telephone is digitized into PCM signals by the voice codec.

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Jimmie

4 months ago

I think digital voice networks function by converting sound waves into electrical signals.

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