Q&A
As mentioned in the Introduction, you have two choices for review questions. The questions that follow next give you a more difficult challenge than the exam itself by using an open-ended question format. By reviewing now with this more difficult question format, you can exercise your memory better, and prove your conceptual and factual knowledge of this chapter. You can find the answers to these questions in Appendix A.
The second option for practice questions is to use the CD-ROM included with this book. It includes a testing engine and more than 200 multiple-choice questions. You should use this CD-ROM nearer to the end of your preparation, for practice with the actual exam format. You can even customize the CD-ROM exam to include, or not include, the topics that are only on the CCIP QoS.
| 1. | List the two classification and marking tools mentioned in this chapter, including the full names and popular acronyms.
| | 2. | List four queuing tools, including the full names and popular acronyms.
| | 3. | List the two shaping tools mentioned in this chapter, including the full names and popular acronyms.
| | 4. | List three Congestion Avoidance tools, including the full names and popular acronyms.
| | 5. | List four link efficiency tools, including the full names and popular acronyms.
| | 6. | List the QoS tools that perform some classification function.
| | 7. | Which of the following tools can be used for classification and marking? CB marking, PQ, CB shaping, WFQ, WRED, FRTS, LLQ, MLPPP LFI, NBAR, QPM, cRTP
| | 8. | Which of the following tools can be used for queuing? CB marking, PQ, CB shaping, WFQ, WRED, FRTS, LLQ, MLPPP LFI, NBAR, QPM, cRTP
| | 9. | Which of the following tools can be used for shaping? CB marking, PQ, CB shaping, WFQ, WRED, FRTS, LLQ, MLPPP LFI, NBAR, QPM, cRTP
| | 10. | Which of the following tools can be used for link efficiency? CB marking, PQ, CB shaping, WFQ, WRED, FRTS, LLQ, MLPPP LFI, NBAR, QPM, cRTP
| | 11. | Define the DiffServ term "behavior aggregate."
| | 12. | Define the DiffServ term "DSCP," including what the acronym stands for.
| | 13. | Define the DiffServ term "PHB," including what the acronym stands for.
| | 14. | Define the DiffServ term "MF classifier," including what the acronym stands for.
| | 15. | Define the DiffServ term "DS ingress node," including what the acronym stands for.
| | 16. | Compare and contrast the terms "BA classifier" and "MF classifier," according to DiffServ specifications. Suggest typical points in the network where each is used.
| | 17. | Compare and contrast the contents of the IP ToS byte before and after the advent of DiffServ.
| | 18. | Describe the QoS behavior at a single DS node when using the AF PHB. Also explain what the acronym "AF PHB" represents and identify the RFC that defines it.
| | 19. | Explain (by comparing and contrasting) whether AF and CS PHB DSCPs conform to the concept that "bigger DSCP values are better than smaller values."
| | 20. | Describe the QoS behavior at a single DS node when using the EF PHB. Also explain what the acronym "EF PHB" represents and identify the RFC that defines it.
| | 21. | Describe the process used by RSVP to reserve bandwidth in a network.
| | 22. | Compare and contrast DiffServ and IntServ in terms of using classes, flows, and scalability.
| | 23. | List and describe the two key advantages of the Best Effort model for QoS.
| | 24. | List and describe the two key advantages of the DiffServ model for QoS.
| | 25. | List and describe the two key disadvantages of the DiffServ model for QoS.
| | 26. | List and describe the two key disadvantages of the IntServ model for QoS.
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