Các câu hỏi và tình huống trong cuốn sách này có nhiều khó khăn hơn so với những gì bạn nên kinh nghiệm về kỳ thi thực tế. Những câu hỏi không cố gắng để trang trải chiều rộng hoặc chiều sâu hơn so với kỳ thi, | 30 Chapter 1 Campus Network Overview Q A The questions and scenarios in this book are more difficult than what you should experience on the actual exam. The questions do not attempt to cover more breadth or depth than the exam however they are designed to make sure that you know the answer. Rather than allowing you to derive the answers from clues hidden inside the questions themselves the questions challenge your understanding and recall of the subject. Hopefully these questions will help limit the number of exam questions on which you narrow your choices to two options and then guess. You can find the answers to these questions in Appendix A. 1. For each layer of the OSI model match the forwarding criteria used by a switch Layer 1 A. IP address Layer 2 B. UDP TCP port Layer 3 C. None Layer 4 D. MAC address 2. What is multilayer switching MLS 3. Fill in the blanks in the following statement In the 20 80 rule of networking 20 percent of the traffic on a segment usually stays while 80 percent travels. 4. What is a collision domain and where does it exist in a switched LAN 5. What is a broadcast domain and where does it exist in a switched LAN 6. What is a VLAN and why is it used 7. At what OSI Layer s do devices in the distribution layer usually operate 8. What is network segmentation When is it necessary and how is it done in a campus network design 9. Is it possible to use Layer 2 switches in the distribution layer rather than Layer 3 switches If so what are the limitations Q A 31 10. Which of the following Cisco switch products should be used in a campus network s distribution layer Check all that apply. a. Catalyst 2950 b. Catalyst 3550 SMI c. Catalyst 3550 EMI d. Catalyst 4000 4500 e. Catalyst 6500 11. When might you select a Catalyst 4000 to use in a wiring closet What attributes make it a good choice 12. Which Cisco switch family has the most scalable performance This chapter covers the following topics that you need to master for the CCNP BCMSN exam Modular
