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new ccna salary.Cordless phones: a brief introduction to cordless phone technology and why it interferes with WU\NoBluetooth technology: deals with Bluetooth technology and its standardization process.ZigBee: describes how ZigBee technology is applied and how it interferes with WLANo WiMax: Describes WiMax technology and how it compares to Wi-Fi. Other types of interference: covers some other sources of wireless interference.Other Wireless TechnologiesAlthough the 802.11 wireless spectrum is the best-known wireless technology, there are a number of other wireless technologies in use that are also popular, believe it or not. The purpose of this chapter is to discuss some (not all) other wireless technologies and how they interfere with or affect the 802.11WLAN standard. These technologies include cordless phone technology, Bluetooth, ZigBee, WiMax, and a few other scattered technologies.The first thing you should do is take the "Do I already know this?" test question. If you get 80% or more correct, you can go straight to the "Preparation Task". If you get less than 80% correct, you should spend some time reviewing the entire chapter.Chapter 2 8.1 "Do I already know?" Test QuestionsDo I already know? The test questions will help you to see how well you know the topics covered in this chapter before you start the chapter. Table 8' details the main topics discussed in this chapter and their corresponding test questions.