Organizations are adopting wireless networking technologies to address networking
requirements in ever-increasing numbers. The phenomenal rate of change in wirelessstandards and technology complicates the decision of how to implement or update
the technology. In this section, we delve into the inner workings of the wireless LAN
(WLAN) environment of today.
We start by concentrating on the specifi c topic areas
related to wireless networking technology. We explain how LANs and WLANs work,
coexist, and interoperate. We discuss the varying wireless standards that exist today and
look at some future standards. Mobile workforces drive the need for strong understanding
of the issues surrounding mobile security, and we cover those issues in fairly extensive
detail. Because mobile security requires encryption to work, we cover the various
encryption standards in use today and explain the strengths and weaknesses of each. At
the end of this chapter, you should have a fundamental grasp of the essentials of wireless
networking. Now, let’s begin by taking a look at WLANs.
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