Redes e internet section 1.1 - 1,4

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Note on Redes e internet section 1.1 - 1,4, created by giovanasantos on 27/02/2014.
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Note by giovanasantos, updated more than 1 year ago
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Sections 1.1-1.4  1) What are the two types of services that the Internet provides to its applications? What are some of  characteristics of each of these services? A internet provê infra-estrutura para aplicações distribuídas   2) It has been said that flow control and congestion control are equivalent. Is this true for the Internet's  connection-oriented service? Are the objectives of flow control and congestion control the same?  3) Briefly describe how the Internet's connection-oriented service provides reliable transport.  4) What advantage does a circuit-switched network have over a packet-switched network?  4) What advantages does TDM have over FDM in a circuit-switched network?  5) Suppose that between a sending host and a receiving host there is exactly one packet switch. The  transmission rates between the sending host and the switch and between the switch and the receiving  host are R1 and R2, respectively. Assuming that the router uses store-and-forward packet switching, what  is the total end-to-end delay to send a packet of length L. (Ignore queuing and propagation delay.)  6) What are some of the networking technologies that use virtual circuits? Find good URLs that discuss  and explain these technologies.  7) What is meant by connection state information in a virtual-circuit network?  8) Suppose you are developing a standard for a new type of network. You need to decide whether your  network will use VCs or datagram routing. What are the pros and cons for using VCs?

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