WiFi stands for Wireless Fidelity. WiFiIt is based on the IEEE 802.11 family of standards and is primarily a local area networking (LAN) technology designed to provide in-building broadband coverage.
Current WiFi systems support a peak physical-layer data rate of 54 Mbps and typically provide indoor coverage over a distance of 100 feet.
WiFi has become the de facto standard for last mile broadband connectivity in homes, offices, and public hotspot locations. Systems can typically provide a coverage range of only about 1,000 feet from the access point.
Disadvantages:
Wi-Fi generates radiations which can harm the human health
We must disconnect the Wi-Fi connection whenever we are not using the server
There are some limits to transfer the data, we cant able to transfer the data for long distance
Wi-Fi implementation is very expensive when compared to the wired connection