Free Cisco 100-890 Exam Actual Questions & Explanations

Last updated on: Jun 3, 2026

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Question No. 1

How does the Cisco IP phone learn the voice VLAN ID?

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Correct Answer: A

Question No. 2

How do digital voice networks function?

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Correct Answer: D

Question No. 4

Which VoIP network component provides Call Admission Control (CAC), bandwidth control and management, and address translation?

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Correct Answer: A

Gatekeeper: A gatekeeper provides Call Admission Control (CAC), bandwidth control and management, and address translation.

http://what-when-how.com/cisco-voice-over-ip-cvoice/voip-fundamentals-introducing-voice-over-ip-networks-part-1/


Question No. 5

From which network service does a Cisco IP phone request the configuration file during the bootup process?

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