(1) Take online quizzes of multiple choices.
(2) Try the multiple choices at the end of each chapter of textbook. Selected solutions are founded at the site.
1. What are the SAP addresses in FM radio broadcasting?
2. What is the difference between connectionless communication and connection-oriented communication?
3. Why is there a need to support multi-level addressing?
4. What are two reasons for using layered protocols?
5. Which of the OSI layers handles each of the following: a) Breaking the transmitted bit stream into frames. b) Determining which route through the subnet to use.
6. A system has an n-layer protocol hierarchy. Applications generate messages of length M bytes. At each of the layers, an h-byte header is added. What fraction of the network bandwidth is filled with headers?
7. When transferring a file between two PCs, (at least) two acknowledgement strategies are possible. First, the file is chopped up into packets, which are individually acknowledged by the receiver, but the file transfer as a whole is not acknowledged. Second, the packets are not acknowledged individually, but the entire file is acknowledged when it arrives. Discuss the two approaches.
8. List two advantages and two disadvantages of having international standards for network protocols.
