| Date of Issue: 02-01-2023 | Rate this Study Guide |
Question 1.
What are the two most prevalent voice over IP protocols in use today?
a) H.323
b) MGCP
c) ICMP
d) H.965
Question 2.
What two devices are required for a Multimedia Zone to exist?
a) Gateway
b) Voice Simulator Server
c) Gatekeeper
d) Router
Question 3.
What device on a router performs analog to digital conversion of voice?
a) VPC (Voice Processing Chip)
b) The Router's CPU
c) VoIP Processor Unit
d) DSP (Digital Signal Processor)
Answers
Question 1.
What are the two most prevalent voice over IP protocols in use today?
a) H.323
b) MGCP
c) ICMP
d) H.965
Explanation
ICMP is incorrect -- it is the IP protocol used to ping devices. H.965 is not a standard at all.
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CCIE Objective(s): K1
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Question 2.
What two devices are required for a Multimedia Zone to exist?
a) Gateway
b) Voice Simulator Server
c) Gatekeeper
d) Router
Answer
a) Gateway
c) Gatekeeper
Explanation
A Gateway is the device used to translate media into data that the multimedia zone can transport. A Gatekeeper is the device used to assist in directing the transport of the traffic. A Voice Simulator Server is a device that does not exist. Although A Router can be used in a zone it is not necessary. Two zones can communicate over a layer-two switched network.
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CCIE Objective(s): K1
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Question 3.
What device on a router performs analog to digital conversion of voice?
a) VPC (Voice Processing Chip)
b) The Router's CPU
c) VoIP Processor Unit
d) DSP (Digital Signal Processor)
Answer
d) DSP (Digital Signal Processor)
Explanation
"VPC" is not a real chip. A DSP, not the router's CPU, is used for A-to-D conversion on the router. "VoIP Processor Unit," like "VPC," is not a real device.
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CCIE Objective(s): K1
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