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Table Of Contents  CertiGuide to A+ (Core Hardware)
 9  Chapter 1011:  Networking

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Bridge over Divided LANs
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X  Chapter 1011: Summary

In this chapter, you learned how two or more computers could make a network, or LAN. We began this with a discussion of Network Interface Cards, NICs. You learned how each NIC is given a unique number called a MAC address.

Next, you were shown the various types of cable that are used to connect PC NIC cards into a network. You learned about the most common type of network, an Ethernet network, and the types of cables it uses.

You learned about how computers are arranged in networks using topologies. You learned to Identify bus, star, ring, and mesh network topologies.

Next, you were shown how computers talk to each other over their network cables using protocols. You learned about IPX/SPX and TCP/IP protocols. You were then shown how TCP/IP is actually of suite of protocols that is made up of transmission protocols, networking protocols, and utilities.

Dissecting TCP/IP further, you learned how each computer on a TCP/IP network is given a unique address called an IP address. You were also shown that each computer must be assigned a subnet mask and a gateway address to complete its configuration. We concluded our discussion on TCP/IP with the Dynamic Host Configuration Protocol (DHCP). You learned how this application is used to lease configuration data to computers that wish to join a TCP/IP network.

Finally, you learned about the various pieces of hardware that can be found in a network.

First, you learned about hubs and their intelligent cousin, the switch. You then learned about even more intelligent devices known as routers and bridges.


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