Chapter 16 - Network maintenance. In this chapter, students will be able to understand: Magnetic tape is the most popular storage medium for backups; backup software enables you to select the data you want to back up and sends it to the device you use for backups; daily backup jobs can be full backups, incremental backups, or differential backups;...

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Chapter 14 - Planning the network. This chapter includes contents: Why does the organization want a new network installed? What services does the organization want the network to provide? Evaluating the installation site, evaluating distances between components, environmental conditions,...

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Chapter 12 - Remote network access. This chapter includes contents: Types of remote network connections, public switched telephone network (PSTN), modems, modem communications, configuring a modem, Virtual Private Network (VPN) communications,...

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Chapter 17 - Network troubleshooting procedures. Chapter summary: Computers have a variety of ports, some of which are implemented by the motherboard and others by expansion cards; computers use many different types of connectors fortheir various interfaces, and in some cases the same connector type can provide different functions; SCSI host adapters can use any one of several types of connectors, which are not interchangeable;...

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Chapter 15 - Installing a network. Chapter summary: External unshielded twisted pair (UTP) cable installations use prefabricated cables to connect computers directly to hubs; internal cable installations use bulk cable, which you pull through walls, ceilings, or floors; to connect two computers without a hub, you must use a crossover cable connection, which reverses the transmit and receive signals;...

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Chapter 18 - Network troubleshooting tools. This chapter includes contents: Documentation and resources, logs and indicators, network testing and monitoring tools, product documentation, CD-ROM documentation formats,...

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Chapter 19 - Network troubleshooting scenarios. Chapter overview: Introduction to network troubleshooting, incident administration, gathering information, possible causes: Internet router problem, internet communication problem, domain Name System (DNS) failure, local area network (LAN) communication problem, computer configuration problem, user error.

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The main contents of this chapter include all of the following: Some definitions, sockets, byte ordering, address transformation, byte manipulation functions, information about remote host, socket system calls, connectionless iterative server.

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Learning objectives of this chapter include: Understand the architecture of the OSI model, understand the layers of the OSI model and their functions, understand the architecture of the TCP/IP Protocol Suite, differentiate between the OSI model and the TCP/IP Suite, differentiate between the three types of Internet addresses.

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Upon completion you will be able to: Understand the different versions of wired Ethernet, understand wireless Ethernet, understand the types of point-to-point WANs, understand the types of switched WANs, especially ATM, differentiate between repeaters, bridges, routers, and hubs.

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When you finish this chapter, you should: Understand the concept of classless addressing, be able to find the first and last address given an IP address, be able to find the network address given a classless IP address, be able to create subnets from a block of classless IP addresses, understand address allocation and address aggregation.

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The chapter has several objectives: To give a brief history of the Internet; To give the definition of the two often-used terms in the discussion of the Internet: protocol and standard; To categorize standard organizations involved in the Internet and give a brief discussion of each; To define Internet Standards and explain the mechanism through which these standards are developed; to discuss the Internet administration and give a brief...

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