Download Sams Teach Yourself Network Troubleshooting in 24 Hours (2nd by Jonathan Feldman PDF

By Jonathan Feldman

A realistic, hands-on quide to community troubleshooting that emphasizes diagnostic recommendations that either pros and part-time community adminstrators can comprehend and use of their day by day actions. In state-of-the-art pervasive community setting, a lot of those everyone is frequently accountable for solving a community if it is going down. This booklet emphasizes solving useful networking functions like shared printers, utilizing the net, and sharing documents. It doesn't get into the specifics of protocols or particular functions, yet offers brief, concise overviews of subject matters like instant networking, Unix, home windows 2000, Novell Netware, routers, and firewalls.

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Extra resources for Sams Teach Yourself Network Troubleshooting in 24 Hours (2nd Edition)

Sample text

Two types of network “glue” tie you and your network neighborhood together: • Hubs (concentrators) • Switches Think of a hub as a shared neighborhood party line (like the one you used to have at Uncle Harry’s cabin in the woods). It used to be cost-prohibitive to give each network card its own channel to talk on because more silicon “smarts” were required. Just as its name implies, a hub is where all of the NICs on the party line (or segment) come together. Each NIC’s wire is connected to the hub in a spoke-like fashion, where they all physically share the same wire.

NICs have built-in rules for using this common area, which is discussed further in Hour 10. For the moment, you just need to know that each NIC has been schooled in “netiquette” and has been taught in the factory to play well with others and to share the wire nicely—that is, most of the time. Be aware that if a network card does not obey these rules, this can cause problems on an entire hub, or even an entire VLAN. ) Computers on older networks were actually connected together on the same wire, much like older Christmas lights used to be.

UDP is a ________-oriented protocol Answers to Quiz Questions 1. 7 2. 2 3. Application (7) 4. 1 (Physical), 2 (Data link), 3 (Network), 7 (Application) 5. netstat -e 6. connection 7. connectionless Activity Find someone who works with networks and ask how the OSI model has been useful in his or her troubleshooting work. What about design work?

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