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Network Data Link Physical The Seven Layers of the OSI Model (Cont.) Data Delivery: • Provides connectivity and path selection between two host systems • Routes data packets • Selects best path to deliver data • The Network layer prioritizes data known as Quality of Service (QoS)
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CONTENTS Preface 3 Second Edition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Licensing ...
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Computer Networking is simply the formation of a computer network. A computer network can be defined as the collection of computers, printers, and other equipment that are connected (wired or wireless), with the ultimate aim of fostering communications between the devices. The process of creating this connection of devices is known as Computer ...
Protocol Layering and Layering Models. Protocol Layering d Needed because communication is complex d Intended primarily for protocol designers
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-Learn general principles of networks Goal: Teach the concepts underlying networks-How do networks work? What can one do with them?-Give you a basic understanding of the Internet-Give you experience using and writing protocols-Give you tools to understand new protocols & applications
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Computer networks have used various types of physical media to exchange information, notably : • electrical cable. Information can be transmitted over different types of electrical cables. The most common ones are the twisted pairs (that are used in the telephone network, but also in enterprise networks) and the coaxial
An Introduction to Computer Networksis a free and open general-purpose computer-networking textbook, complete with diagrams and exercises.It covers the LAN, internetworking and transport layers, focusing primarily on TCP/IP.
