Which frequency bands are most frequently used for wireless communication?

Which frequency bands are most frequently used for wireless communication?

• A. 1.2 and 2.6 GHz
• B. 2.4 and 5 GHz
• C. 900 MHz and 2.4 GHz
• D. 4.9 and 5.9 GHz

Answer: (B)

The selection of 2.4 and 5 GHz as the most frequently used frequency bands for wireless communication is based on their wide adoption across various technologies, especially in Wi-Fi networking. The 2.4 GHz band is known for its excellent range and ability to penetrate obstacles, making it ideal for general household and office environments. This band supports a number of wireless standards including 802.11b, 802.11g, and 802.11n, which have been foundational in the development of Wi-Fi networks. However, it has a limitation due to congestion, as many devices (such as microwaves, cordless phones, and Bluetooth devices) operate on the same frequency, which can lead to interference. The 5 GHz band, on the other hand, provides higher bandwidth and faster data rates compared to 2.4 GHz. It is less crowded, allowing for a cleaner signal and reduced interference. This band supports newer Wi-Fi standards including 802.11n and 802.11ac, which take advantage of the increased capacity offered by 5 GHz. While it has a shorter range and lesser ability to penetrate walls compared to 2.4 GHz, the trade-off is often worth it for environments where performance is

The selection of 2.4 and 5 GHz as the most frequently used frequency bands for wireless communication is based on their wide adoption across various technologies, especially in Wi-Fi networking.

The 2.4 GHz band is known for its excellent range and ability to penetrate obstacles, making it ideal for general household and office environments. This band supports a number of wireless standards including 802.11b, 802.11g, and 802.11n, which have been foundational in the development of Wi-Fi networks. However, it has a limitation due to congestion, as many devices (such as microwaves, cordless phones, and Bluetooth devices) operate on the same frequency, which can lead to interference.

The 5 GHz band, on the other hand, provides higher bandwidth and faster data rates compared to 2.4 GHz. It is less crowded, allowing for a cleaner signal and reduced interference. This band supports newer Wi-Fi standards including 802.11n and 802.11ac, which take advantage of the increased capacity offered by 5 GHz. While it has a shorter range and lesser ability to penetrate walls compared to 2.4 GHz, the trade-off is often worth it for environments where performance is