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T his chapter is about the protocols in use on the Internet. A protocol is nothing more than a set of rules that govern a particular operation. The Internet has many protocols, but the ones you’re interested in are those having to do with network communications. Network communications take place using network communications protocols. A network communications protocol is a set of rules that govern network communications. If two computers are going to communicate, they both must be using the same protocol | Protocols i-NET EXAM OBJECTIVES COVERED IN THIS CHAPTER S Describe the nature purpose and operational essentials of TCP IP. Content could include the following What addresses are and their classifications A B C D Determining which ones are valid and which ones are not subnet masks Public versus private IP addresses J Describe the purpose of remote access protocols. Content could include the following SLIP PPP PPTP Point-to-point multipoint J Describe how various protocols or services apply to the function of a mail system Web system and file transfer system. Content could include the following POP3 SMTP HTTP FTP NNTP news servers TCP IP LDAP LPR TELNET Gopher Copyright 2000 SYBEX Inc. Alameda CA. www.sybex.com his chapter is about the protocols in use on the Internet. A protocol is nothing more than a set of rules that govern a particular operation. The Internet has many protocols but the ones you re interested in are those having to do with network communications. Network communications take place using network communications protocols. A network communications protocol is a set of rules that govern network communications. If two computers are going to communicate they both must be using the same protocol. The Internet uses many different protocols most of which are a subset of the TCP IP protocol suite which is discussed below . Each protocol governs a specific function like e-mail Web browsing and file transfer . In this chapter you will learn about protocols their functions and which protocols are used on the Internet. The TCP IP Protocol Suite T he Transmission Control Protocol Internet Protocol TCP IP suite is a collection or suite of protocols that operate together to provide data transport services for the Internet. The TCP IP protocol suite is the only protocol suite used on the Internet. Because TCP IP is so central to working with the Internet and with intranets we ll discuss it in detail and then we ll discuss some of the protocols that make up the TCP
