Application services differ from network services in several key ways, including • Network services provide generic transport mechanisms useable by any application. • Application services provide specific transport services optimized for a specific application or purpose. • Network services run on top of IP, which abstracts different kinds of physical transport. • Application services run […]
Fixed-length fields place all the interpretative elements in the protocol specification outside the communications channel. Because of this, fixed-length encoding often uses network resources efficiently; the network does not need to carry any additional information to describe transmitted data. There are, however, two situations where fixed-length encoding is suboptimal: • Carrying a field of rarely […]
Take the quiz (either here or use the PTP software) if you want to use the score to help you decide how much time to spend on this chapter. Appendix A, “Answers to the ‘Do I Know This Already?’ Quizzes,” found at the end of the book, includes both the answers and explanations. You can […]
Take the quiz (either here or use the PTP software) if you want to use the score to help you decide how much time to spend on this chapter. Appendix A, “Answers to the ‘Do I Know This Already?’ Quizzes,” found at the end of the book, includes both the answers and explanations. You can […]
