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SolStd01 - CHAPTER 1 Introduction Solutions to Odd-Numbered...

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1 CHAPTER 1 Introduction Solutions to Odd-Numbered Review Questions and Exercises Review Questions 1. The five components of a data communication system are the sender , receiver , transmission medium , message , and protocol . 3. The three criteria are performance , reliability , and security . 5. Line configurations (or types of connections) are point-to-point and multipoint . 7. In half-duplex transmission , only one entity can send at a time; in a full-duplex transmission , both entities can send at the same time. 9. The number of cables for each type of network is: a. Mesh : n ( n – 1) / 2 b. Star : n c. Ring : n – 1 d. Bus : one backbone and n drop lines 11. An internet is an interconnection of networks. The Internet is the name of a spe- cific worldwide network 13. Standards are needed to create and maintain an open and competitive market for manufacturers, to coordinate protocol rules, and thus guarantee compatibility of data communication technologies. Exercises
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SolStd01 - CHAPTER 1 Introduction Solutions to Odd-Numbered...

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