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paperback. Condición: New. Ship out in 2 business day, And Fast shipping, Free Tracking number will be provided after the shipment.Paperback. Language: Chinese Publisher: Science Press. Computer network (general higher education computer class features professional family planning materials) (Cheng Li. Liu Jianyi. king of Fir) in accordance with the protocol-level architecture top-down way. from the readers are familiar with the application layer protocol. In turn tells the transport layer. network layer. data link layer. local area networks. physical layer. multi-media network and network security. -Level features and services in the organization of the contents of each layer. the book follows an overview of main points and principles of the protocol instance. the device instance. the order of the security risks. and are equipped with a rich and in accordance with the actual teaching practice task so that readers can integrate theory with actual and complete understanding of computer network protocols. operating procedures and safety hazards. The method of writing. this book seeks to easy to difficult. deep shallow people. easier to understand. Computer network (the characteristics of regular higher education computer class professional family planning materials) can be used as institutions of higher learning related undergraduate or graduate computer network curriculum materials. The book contains the entire contents of the National Graduate Entrance Examination computer professional basis comprehensive examination outline requirements can also be used as the reference data of the Graduate Record Examination.Four Satisfaction guaranteed,or money back.