The 5GHz frequency band is less prone to interference from other household appliances, such as microwaves, cordless phones, and Bluetooth devices, than the 2.4GHz band. The 5GHz band also offers more non-overlapping channels and higher data rates than the 2.4GHz band. However, the 5GHz band has a shorter range and lower penetration than the 2.4GHz band, so the technician should consider the size and layout of the SOHO network before choosing the frequency band. 802.11b and 802.11g are wireless standards that operate in the 2.4GHz band, while 802.11a, 802.11n, and 802.11ac can operate in both the 2.4GHz and 5GHz bands.
References:
* Basic Wired/Wireless SOHO Network | CompTIA A+ 220-1001 | 2.3
* Installing a SOHO Network - CompTIA A+ 220-1001 - 2.3
* Installing and Configuring a SOHO Network - CompTIA A+ Complete: Review ...