Describe three disadvantages of WLANs.
What will be an ideal response?
The disadvantages of WLANs include:
· Security - Wireless LAN transceivers are designed to serve computers throughout a structure with uninterrupted service using radio frequencies. Not only can the wireless packets be intercepted by a nearby adversary's computer, but more importantly, a user willing to spend a small amount of money on a good-quality antenna can pick up packets at a remarkable distance. In fact, there are even computer users, known as wardrivers, who are dedicated to locating and sometimes cracking into wireless networks.
· Range - The typical range of a common wireless network with standard equipment is on the order of tens of meters. Though sufficient for a typical home, it will be insufficient in a larger structure.
· Reliability - Like any radio frequency transmission, wireless networking signals are subject to a wide variety of interference as well as complex propagation effects that are beyond the control of the network administrator.
· Speed - The speed on most wireless networks (typically, 1 to 108 Mbps) is reasonably slow compared to the slowest common wired networks (100 Mbps up to several Gbps).
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