Network+ Study Guide by David Groth

By David Groth

This publication has a wealth of data that will help you arrange for community+ checks. Very particular and offers reasons to how and why issues function. lots of questions and solutions and glossaries to review from. This publication may be incorporated with your different examine fabrics!

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File servers are typically the most accessed servers as well, storing files for all the users on the network. com Physical Topologies 11 and programs to be shared. Additionally, these servers cost several thousand dollars. In the last few years, however, it has become very attractive to network administrators to replace these file servers with a new breed of device known as network attached storage. Network attached storage, such as the Quantum® SNAP! Server, is basically a small network device, or “black box,” with a network card and a large hard disk.

It’s a matter of finding something that fits, feels right, and is within your budget. com Physical Media 21 to install. Larger environments are usually wired in a star because moves, adds, and changes to the network are performed more efficiently with a physical star than with any of the other topologies. If you need uptime to the definition of fault resistant (that is, 99-percent uptime or less than 8 hours total downtime per year), you should seriously consider a partial mesh layout. While you are thinking about how fault tolerant a mesh network is, let the word “maintenance” enter your thoughts.

The combination of its incompatibility and its actually less than 100Mbps throughput (due to its media access method, which is discussed elsewhere in this book) ultimately spelled its demise. However, it was basically 100Mb, and it was out the door early in the game. Because some companies implemented this standard, you need to know about it. Fiber-Optic Cable Because fiber-optic cable transmits digital signals using light pulses rather than electricity, it is immune to EMI and RFI. You will find a complete discussion of these terms in Chapter 6, but you should know at this point that both could affect network performance.

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