Two wireless LAN technologies in use by many organizations today are 802.11 (seen in section 2.6) and Bluetooth.
Other wireless data technologies which work over long distances include packet radio, cell phone, microwave and satellite communication.
Two primary issues with wireless connectivity are connection reliability and access control.
When planning wireless connectivity, be sure that you know the level of reliability you need for your connections, and make sure you have it before going live.
Because data in the air is accessible to anyone who can intercept it, the use of strong encryption is required if you want to preserve the confidentiality of data traveling across your wireless network. This can be implemented via a VPN connection, or by running the application used across the wireless link over a protocol such as TLS that allows for encryption to protect data integrity and confidentiality. Because wireless LAN nodes can be so convenient to set up, many organizations have taken to implementing them, particularly when temporary solutions are required. Bluetooth has some issues which have come to light recently 274
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