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Cisco Voice Over IP Sample Questions:

1. Refer to the exhibit. Will these delays meet the G.114 recommendation for one-way delay?

A) Yes, they will meet the recommendation for most user applications.
B) Yes, they will meet the recommendation, provided the administrators understand the implications.
C) No, they will not meet the recommendation for general network purposes.
D) No, but they will be acceptable for time-sensitive transaction processing.

2. What is the E.164 numbering plan?

A) the IETF North American number plan
B) a proprietary PBX number plan
C) the European PBX standard telephony number plan
D) the ITU worldwide number plan

3. Which type of delay is caused when large data packets block voice packets from the outbound interface?

A) propagation delay
B) serialization delay
C) queuing delay
D) packetization delay

4. In an effort to consume less bandwidth across the WAN, the decision was made at Acme Chemical Company to change the voice packet size. They changed from two voice frames per packet to one voice frame per packet. What effect did this have on Acme's voice traffic?

A) Per call bandwidth consumption decreased and end-to-end delay increased.
B) Per call bandwidth consumption increased and end-to-end delay also increased.
C) Per call bandwidth consumption decreased and end-to-end delay decreased.
D) There was no effect on voice traffic.
E) Per call bandwidth consumption increased and end-to-end delay decreased.

5. What is the approximate frequency range of human speech?

A) 600 Hz to 5400 Hz
B) 200 Hz to 9000 Hz
C) 20 Hz to 20,000 Hz
D) 40 Hz to 15,000 Hz

Solutions: