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How Secure Is Your Wireless Network? Safeguarding Your Wi-Fi LAN by CCNA Lee Barken - CISSP MCP, CPA

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802.11g

In 2003, the IEEE approved the 802.11g specification, intended to address many of the issues regarding 802.11a. Essentially, 802.11g is 802.11b operating at 54 Mbps. In other words, the IEEE took the modulation technique of 802.11a, Orthogonal Frequency Division Multiplexing (OFDM), and applied it in the 2.4GHz spectrum. The good news is that 802.11g is totally backwards compatible and interoperable with 802.11b, except that it now operates at 54 Mbps. The bad news is that you still have all the problems associated with 802.11b. There are still only 3 non-overlapping channels and the issues of interference from other devices operating in the crowded 2.4 GHz band still exist.

Since 802.11g will work with your existing investment in 802.11b ...

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