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CCNA Certification All-In-One For Dummies by Silviu Angelescu

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Chapter 3: Wireless Local Area Network (WLAN) Operation Modes

Exam Objectives

Identifying the basic parameters to configure on a wireless network

Identifying and describing the purpose of the components in a small wireless network — including SSID, BSS, ESS

Identifying common issues with implementing wireless networks

When working with wireless LANs, you need to know their operating modes as well as how to lay out access points (APs) to allow maximum coverage while reducing internal conflicts. This chapter examines the basic options for WLAN operation and describes how to lay out a basic wireless network. If you focus on these key facts, you should breeze through the related questions on the exam.

When you are working with a traditional wired network, you connect your computer to a network switch to interconnect all devices on your network. Or, you use crossover network cables to directly connect two computers. In the case of wireless networking, you still have two choices: You can connect two devices directly or you can connect your devices using a central device, mainly an access point. These two methods are referred to as ad hoc mode when the devices are directly connected or infrastructure mode when using an AP. This chapter takes a look at both of these options.

Ad Hoc Mode

When working with networking in ad hoc mode, you are connecting to another device that has the same wireless settings as the settings on your own device. The benefit of this networking is that you do ...

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