tailieunhanh - CCNP ONT Official Exam Certification Guide phần 6

Như bạn có thể nhìn thấy trong cú pháp lệnh này, cấu hình WFQ trên một giao diện rất đơn giản. Tham số cdt (sung huyết loại bỏ ngưỡng) thiết lập số lượng các gói tin được cho phép trong hàng đợi mỗi. Mặc định là 64, nhưng bạn có thể thay đổi nó với bất kỳ sức mạnh của 2 trong phạm vi 16-4096. | Q A 175 Q A Some of the questions that follow challenge you more than the exam 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. The answers to these questions appear in Appendix A. 1. Name two of the limitations and drawbacks of tail drop. 2. Explain TCP global synchronization. 3. Explain TCP starvation. 4. Explain why RED does not cause TCP global synchronization. 5. What are the three configuration parameters for RED 6. Briefly explain how WRED is different from RED. 7. Explain how class-based weighted random early detection is implemented. 8. Explain how assured forwarding per-hop behavior is implemented on Cisco routers. 9. List at least two of the main purposes of traffic policing. 10. List at least two of the main purposes of traffic shaping. 11. List at least four of the similarities and differences between traffic shaping and policing. 12. In the token bucket scheme how many tokens are needed for each byte of data to be transmitted 13. Explain in the single bucket single rate model when conform action and exceed action take place. 14. What is the formula showing the relationship between CIR Bc and Tc 15. Compare and contrast Frame Relay traffic shaping and class-based traffic shaping. 16. Briefly explain compression. 17. Briefly explain Layer 2 payload compression. 18. Provide a brief explanation for header compression. 19. Is it possible to mitigate the delay imposed by the large data units ahead of delay-sensitive packets in the hardware Tx queue 20. Where should link efficiency mechanisms be applied This chapter covers the following subjects Implementing QoS Pre-Classify Deploying End-to-End QoS C H A P T E R Implementing QoS Pre-Classify and Deploying End-to-End QoS This brief chapter is composed of two sections. The first section is focused on the concept of QoS pre-classify and how it is used to ensure .