| 1. | What is end-to-end QoS?
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| 2. | What do service providers use to contractually guarantee specific delay, jitter, and packet loss to their customers?
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| 3. | When would an SLA be offered on a per PVC basis?
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| 4. | In a Cisco IP Telephony environment, which codec is best suited for the LAN?
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| 5. | In a Cisco IP Telephony environment, which codec is best suited for the WAN?
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| 6. | By default, how many milliseconds of speech are placed into every packet in a voice media stream?
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| 7. | How much bandwidth is required to transport a G.729 VoIP call @ 50 packets per second over a Frame Relay circuit? Assume that cRTP and VAD are not enabled.
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| 8. | Enabling cRTP can reduce the overhead of the IP/UDP/RTP header from 40 bytes to how many bytes?
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| 9. | Cisco DSPs have the capability to compensate for how many milliseconds of lost speech?
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| 10. | A Cisco IP Phone can compensate for how much jitter?
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| 11. | Data applications should be separated into no more than how many distinct classes?
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| 12. | In a converged network supporting voice, interactive video, streaming video, mission-critical data, transactional data, and best-effort traffic, which class or classes should use the low latency queue?
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| 13. | What tool is recommended to discover applications on your network?
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| 14. | What DSCP value do Cisco IP Phones currently mark voice media traffic with?
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| 15. | What CoS value do Cisco IP Phones currently mark voice media traffic with?
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| 16. | What DSCP value do Cisco IP Phones currently mark voice signaling traffic with?
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| 17. | What CoS value do Cisco IP Phones currently mark voice media signaling with?
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| 18. | What is the recommended CoS value for IP routing protocols?
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| 19. | What is the recommended DSCP value for IP routing protocols?
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| 20. | What is the recommended DSCP class for transactional applications?
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| 21. | Which type of queue should voice signaling traffic use in an enterprise network?
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| 22. | Which command is used to allocate 100 percent of the link to MQC?
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| 23. | What value should the Tc be configured for on a Frame Relay circuit that will transport voice media traffic?
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| 24. | What is needed in a campus LAN before QoS is implemented?
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| 25. | Where in the campus LAN is policing typically configured?
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| 26. | What is the recommended CoS value for IP routing protocols?
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| 27. | What QoS mechanism should never be implemented in the core of the campus LAN?
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| 28. | If Cisco IP Phones have the capability to mark voice media and voice signaling traffic, why is it necessary to use access lists to classify these types of traffic?
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| 29. | When is a CoS-to-DSCP map used?
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| 30. | When should the CoS-to-DSCP map be modified?
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| 31. | Which two queuing methods should be used in the service provider's backbone network?
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