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Cisco® Networking All-in-One For Dummies® by Edward Tetz

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Chapter 2: Choosing between Protocols: TCP and UDP

In This Chapter

check.png Comparing TCP versus UDP for network communication

check.png Examining the header structures

check.png Figuring out when to use TCP and UDP

check.png Getting familiar with three-way handshaking

check.png Understanding how TCP sliding windows operate

As I mention in earlier chapters when discussing the Open System Interconnection (OSI) model and the Internet Protocol (IP) network model, Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) are network protocols that operate at the transport or host-to-host layer, depending on the model you are using. They are responsible for the delivery control mechanisms in use with the TCP/IP suite of protocols.

In this chapter, I show you how TCP and UDP allow you to send data over a large IP-based network and the significance of choosing one transport layer protocol over another. In showing you how these two protocols operate, you see where they fit into the IP packet (which I also discuss in Chapter 1 ...

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