网络与分布式的几道考试题，马上考试了，麻烦各位大神看看，只需点中关键字词即可！

Question

1. Briefly list and describe three different ways error detection is implemented.
2. Briefly describe what the hidden node problem is when using wireless network.
3. Briefly describe what we mean by a bipolar signal and some advantages over unipolar?
4. Compare and contrast the three types of addresses used in a network.
5. Compare and contrast symmetric and asymmetric encryption?
6. Describe the two major categories of media types used in data networks.
7. Describe the three different types of application architectures used to create network solution.
8. Describe how application level firewall works and how it is used to provide security.
9. Describe how a network subnet decides if the generated packet should be forwarded to the default gateway.
10. Describe TDM and any limitations that may be inherent in its design.
11. Describe activities and responsibilities of the transport layer in network communications.
12. Explain what is meant by “logical” and “physical” topology of a network
13. Explain the difference between host based and client based application architecture..
14. Explain what is encapsulation and how is it different from translation when used for network interconnectivity.
15. Explain how a SVC is set up on a network in order to enable transmission of data in a packet switched network..
16. Explain what we mean by attenuation and why it is an issue in communications?
17. Explain how Forward Error Correction works and under what circumstances is it used in communications.
18. Explain the difference between information bits and overhead bits in messages and how this might influence the size of the packet?
19. How does the router determine if the arriving packet belongs to a subnet’s address range and which port to forward the packet to?
20. How does a layer-2 Ethernet switches know where to forward the packets they receive? Describe how switches gather and use this information.
21. In network communication what are the difference between a frame and a packet?
22. In network management explain what we mean by smart devices and what extra functionality they provide compared to slandered devices.
23. List and describe the three types of data flows.
24. What are the main differences between dynamic distance vector routing and link state dynamic routing?
25. What purpose does media access control serve in a contention based network?
26. What are the major advantages and disadvantages of using a partial mesh for a wide area network solution? 只需点中关键字词即可，还望高人速速解答，不胜感激

Answer 1

能翻译部分问题，回答很困难