Networking: A Beginner’s Guide Fifth Edition- P9 doc

... are usually accomplished with a stand-alone computer—called a gateway server—that handles the e-mail interface between the two systems, by using gateway software that is part of the file-based ... server-based applications that are packaged together to make them more economical for smaller companies. N Use mailboxes from a service provider that runs a high-end e-mail system (and handes administration ... to a folder on a server, and then have the installation program run from that folder for each workstation. This makes installing the applications much faster and more convenient.CAUTION Make...

Networking: A Beginner’s Guide Fifth Edition- P10 docx

... physical layer so the network layer (layer 3) can transmit its data. The data-link layer typically includes error detection and correction to ensure a reliable data stream. The data elements carried ... part of the physical layer.Data-Link LayerThe data-link layer, layer 2, defines standards that assign meaning to the bits carried by the physical layer. It establishes a reliable protocol through ... known as the packet layer) into a separate layer from the physical and data-link layers means the protocols defined in this layer can be carried over any variations of the lower layers. So, to...

Networking: A Beginner’s Guide Fifth Edition- P14 docx

... guessed it a much thicker coaxial cable called RG-8. Figure 4-6 shows an example of coaxial cable.Fiber-optic cable uses a glass strand and carries the data signals as light instead of electricity. ... using connectors and patch cables that also meet that level of performance. For example, for a Cat-5 installation, you must have Cat-5 cable, connectors, patch panels, and patch cables. The entire ... Industries Alliance (EIA) and the Telecommunications Industry Association (TIA) and are referred to as Levels 1 and 2 and Categories 3, 4, 5, and 6. The different category levels are simply called Cat-3...

Networking: A Beginner’s Guide Fifth Edition- P17 doc

... This area is continuing to evolve very rapidly, and a solution purchased today may not be compatible with equivalent hardware available in a couple of years.Chapter SummaryIn this chapter, ... equipment transmits its information through the power wiring, and all that’s needed is to plug a special adapter into an available outlet near each computer. Be aware that powerline networks are subject ... home.62 Networking: A Beginner’s Guide All of these components are available separately, just as you would purchase them for a business. You can also purchase home networking kits, which include all...

Networking: A Beginner’s Guide Fifth Edition- P22 docx

... model, the application layer. Network layer units of data, such as those carried by IP, are called datagrams.Units of data carried at the data-link layer (layer 1) are called frames.All of these ... than IP, at the transport layer. TCP manages connections between computers. TCP messages are carried (encapsulated) in IP datagrams.The User Datagram Protocol (UDP) serves the same role as ... is called a connectionless protocol.) The chief advantage to UDP is that it is much faster for trivial network communications, such as sending a web page DEFINE-IT! Datagrams, Frames, and PacketsA...

Networking: A Beginner’s Guide Fifth Edition- P25 doc

... Usenet reader (also called a news reader) and a Usenet server. It also provides for message formatting, so messages can be text-based or can also contain binary attachments. Binary attachments ... just as data packets do over the Internet. Also, available circuits would be used more efficiently, allowing more calls to be routed within a particular geographic area.VoIP also has some disadvantages ... into IP packets and transmitted over a network. VoIP can be used to carry voice telephone calls over any IP network, such as a company’s local area network (LAN) or wide area network (WAN), or...

Networking: A Beginner’s Guide Fifth Edition- P38 doc

... time is available to make the backup? Make sure that you avoid situations where you need to back up terabytes of data using a system that can handle only megabytes per hour.N If a partial or ... cost/MB170 Networking: A Beginner’s Guide N Protect against backup media failureN Protect the data from an environmental failure, such as a fire, that destroys the original system and dataMost ... Backup StrategiesAfter acquiring all the necessary information, you can plan a backup rotation strategy, which addresses how backup media is rotated. Backup rotations are designed to accomplish...

Networking: A Beginner’s Guide Fifth Edition- P45 doc

... them. And if a computer does not, then it can be added as a network interface card. NICs are also usually specific to the cable media you have installed. For example, Ethernet NICs are available ... dialog box in Windows Vista203Chapter 14: Purchasing and Managing Client ComputersYou can also improve serviceability if you standardize on a particular manufacturer because then you can ... connected to a local area network (LAN) differ slightly from computers that stand alone. They have additional hardware installed in them, and they run additional network software. This section...

Networking: A Beginner’s Guide Fifth Edition- P51 docx

... You are asked whether to perform an upgrade installation or a custom (clean) installation of Windows Server 2008, as shown in Figure 16-5. If you are installing on a computer that has an upgradable ... log in. 12. After you set your password and log in, you will soon see the new server’s desktop, along with the Initial Configuration Tasks window (which appears automatically), as shown in ... Server 2008 you are installing, as shown in Figure 16-4. (If you pro-vided a key, the installation program can determine this automatically.)5. Choose to accept the license terms, and then click...

Networking: A Beginner’s Guide Fifth Edition- P53 docx

... checkbox. You can choose any combination of roles that you need, and the wizard will walk you through any necessary additional setup with a minimum of hassle. In this example, we are installing Windows ... networking246 Networking: A Beginner’s Guide CAUTION Join an existing forest only if you are the network administrator responsible for the existing Active Directory forest, and you are adding a new domain ... 2008 as a stand-alone domain controller. Using the Add Roles Wizard, choose the Active Directory Domain Services role, and then click Next to install them. (You cannot install other roles at...

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