Why does UDP exist? Would it not have been enough to just let user processes send raw IP packets?
Answer to relevant QuestionsConsider a simple application-level protocol built on top of UDP that allows a client to retrieve a file from a remote server residing at a well-known address. The client first sends a request with file name, and the server ...Datagram fragmentation and reassembly are handled by IP and are invisible to TCP. Does this mean that TCP does not have to worry about data arriving in the wrong order?Give a potential disadvantage when Nagle's algorithm is used on a badly-congested network.A CPU executes instructions at the rate of 1000 MIPS. Data can be copied 64 bits at a time, with each word copied costing 10 instructions. If a coming packet has to be copied four times, can this system handle a 1-Gbps line? ...According to the information given in Fig. 7-3, is little-sister.cs.vu.nl on a class A, B, or C network?
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