Certified Wireless Network Administrator (CWNA) Practice Test

The commonly used frequency bands in Wi-Fi networks are 2.4 GHz and 5 GHz. These bands are established in Wi-Fi standards, allowing devices to connect wirelessly to the Internet and local networks.

The 2.4 GHz band is widely utilized for its extensive range and ability to penetrate walls and obstacles effectively, making it suitable for broader coverage areas. However, it also tends to suffer from congestion, as many devices and appliances, such as microwaves and cordless phones, share this frequency.

The 5 GHz band, on the other hand, offers higher data rates and less interference, making it ideal for environments where high bandwidth and speed are required, such as streaming video or gaming. Although 5 GHz has a shorter range compared to 2.4 GHz, it compensates for this with increased performance.

In summary, the pairing of the 2.4 GHz and 5 GHz bands allows Wi-Fi networks to balance between range and performance, catering to a variety of networking needs and environments.