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Cisco Voice Over IP Sample Questions:

1. What is the function of a SIP registrar server?

A) resolves text addresses to IP addresses
B) routes service requests
C) resolves active endpoint addresses
D) acquires endpoint addresses

2. One voice packet is lost between Phone A and Phone B.
What will be the result to the listener?

A) The listener will hear the audio normally. Packet loss concealment will make the loss inaudible.
B) The listener will experience a gap in the received audio stream.
C) The listener will hear the audio out of order when the lost packet is retransmitted.
D) The call is terminated.

3. Which command parameter specifies that the router should not attempt to initiate a trunk connection but should wait for an incoming call before establishing the trunk?

A) codec clear-channel
B) connection-trunk 404555 answer-mode
C) voice-port 1/0:1
D) ds0-group timeslots 1-23 type ext-sig

4. What does a gateway router match to a dialed number when setting up a VoIP call?

A) session target
B) call leg
C) destination pattern
D) IP route

5. Refer to the exhibit. What is the minimum WAN bandwidth required to support three simultaneous VoIP calls in this network?

A) 19,200 bps
B) 79,200 bps
C) 51,600 bps
D) 247,200 bps

Solutions: