chap07 - Data Networking Fundamentals Chapter 7 Objectives...

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Data Networking Fundamentals Chapter 7
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Objectives In this chapter, you will learn to: Discuss basic networking concepts, including the elements common to all client-server networks Provide examples of multiple network services Describe the differences between LANs, MANs, and WANs Understand the functions of each layer of the OSI model Describe the purpose of protocols and list several types of protocols Recognize the core protocols and addressing scheme for the TCP/IP suite
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Terminology Standalone workstation - a workstation that is not connected to a network, but relies on its own hard disk for data storage and applications. Client - a workstation connected to a network. A person whose workstation is part of a network may also be called a client, or that person may be known more informally as a user. Servers - store shared data and programs on their hard disks. They can also perform management functions, such as determining which users have access to certain programs. Client-server - a network that uses a server to enable clients to share data, data storage space, and devices.
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Terminology
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Requirements for Connectivity
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Requirements for Communications Node - any device (for example, a server, client, or printer) that can receive a transmission over a network. To receive data, each node must have a unique address, or identifying number. Protocol - a rule that governs how the parts of a network communicate.
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Servers Server - A computer on the network that manages shared resources. Redundancy - the practice of using more than one component to guard against outages (or failures). Network operating system (NOS) - software that can manage not only data, but also users, groups, security, and applications on the network.
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How Networks are Used The main purpose for using networks is to share programs, data, and devices, such as printers or fax machines, all of which are known as resources. Network services can be categorized as follows:
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chap07 - Data Networking Fundamentals Chapter 7 Objectives...

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