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:
- Wi-Fi is based on IEEE 802.11 standards for wireless communication.
- It is commonly used for connecting devices like smartphones, laptops, and smart home appliances.
- 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.