TAILIEUCHUNG - Network+ Certification (Outline) - 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;. | 1 2 3 4 Chapter 17 Network Troubleshooting Procedures Chapter Overview A. Identifying Network Components B. Troubleshooting a Network Chapter 17 Lesson 1 Identifying Network Components 1. Introduction A. Network technicians often have to troubleshoot problems on unfamiliar networks. B. When you work on an unfamiliar network installation you should first determine the network s basic hardware configuration. 1. You often must approach a problem without having any information about the network infrastructure and the equipment used to build it. a. In a perfect world you would have access to schematic diagrams of the cabling and an inventory of the network hardware but this rarely happens. C. Usually you must examine the equipment yourself to find out what you need to know. 2. Recognizing Computer Ports A. Computers have many different ports. B. Most of the ports on computers manufactured today are labeled but you might come across units that have no markings. 1. When ports are unlabeled you must be able to discern their functions. C. The ports on a typical computer are located either on the motherboard or on expansion cards that plug into the system bus. 1. If the same type of port can have more than one function you can sometimes tell what a port does by where it is located. 2. The locations of the motherboard ports vary depending on the design of the computer. 3. An older computer might have the motherboard ports grouped in a separate area away from the motherboard itself. a. On an older computer the motherboard ports are separate modules that are bolted to the back of the computer case and connected to the motherboard with cables. b. The expansion slots are grouped in a different area where the ports provided by the expansion cards installed in the system are located. 4. A newer computer might have all of the motherboard ports lined up in a row. a. On a newer computer the ports are part of the motherboard. 1 The ports run horizontally along the bottom of the .

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