Question

What is full form of Wifi ?

A.

Wireless Fidelity

B.

Wireless Filtration

C.

Wireless Fibre

D.

Wireless Firewall

Correct option is A

Wi-Fi stands for Wireless Fidelity, which refers to a technology that enables devices to communicate wirelessly over a local area network (LAN). It uses radio waves to provide high-speed internet and network connectivity without physical cables.

Important Key Points:

  1. Wi-Fi is based on IEEE 802.11 standards for wireless communication.
  2. It is commonly used for connecting devices like smartphones, laptops, and smart home appliances.
  3. Wi-Fi operates on different frequency bands, such as 2.4 GHz and 5 GHz, to transmit data.

Knowledge Booster:

  • Wi-Fi Alliance: An organization that certifies Wi-Fi products for interoperability and reliability.
  • Frequency Bands: The 6 GHz band is also being adopted for faster speeds in modern Wi-Fi standards like Wi-Fi 6E.
  • Wi-Fi Standards:

o   802.11a: Operates at 5 GHz, offering higher speeds but shorter range.

o   802.11n (Wi-Fi 4): Supports both 2.4 GHz and 5 GHz, with improved speed and range.

o   802.11ax (Wi-Fi 6): Provides better efficiency, speed, and capacity for dense environments.

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