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(A+) Wireless Stds

CompTIA A+ Wireless Standards

StandardSpecs
802.11a Introduced: October 1999 Range: 5 GHz Throughput: 54 Mbit/s Distance: Roughly 1/3 of b/g
802.11b Introduced: October 1999 Range: 2.4 GHz Throughput: 11 Mbit/s
802.11g Introduced: June 2003 Range: 2.4 GHz Throughput: 54 Mbit/s
802.11n Introduced: October 2009 Range: 2.4 GHz and/or 5 GHz Throughput: 600 Mbit/s Notes: Utilizes MIMO (4 streams @ 150 Mbit/s)
802.11ac Introduced: January 2014 Range: 5 GHz Throughput: 6,934 Mbit/s (roughly 7 Gbit/s) Notes: Utilizes MIMO (8 streams @ 866.7 Mbit/s)
WEP Wired Equivalent Privacy RC4 stream cipher 64-bit or 128-bit key size DO NOT USE!
WPA Wi-Fi Protected Access RC4 with TKIP (Temporal Key Integrity Protocol) Every packet gets unique encryption key
WPA2 Wi-Fi Protected Access v2 AES (Advanced Encryption Standard) inside CCMP (Counter Mode with Cipher Block Chaining Message Authentication Code Protocol)
WPA2-Enterprise Wi-Fi Protected Access with 802.11x Every user logs in with a different key Authentication server authentication