Exam 200-301 topic 1 question 72 discussion

Band Select is Cisco's terminology for Band Steering. When enabled it encourages stations onto the 5 GHz band. This is achieved by suppressing 2.4 GHz probe response frames to station probe requests and by responding with 5 GHz probe response frames first.

i had this question in my exam

Client Band Select is a feature in wireless networks that allows access points to encourage or force dual-band clients to connect to the less congested 5GHz band instead of the more crowded 2.4GHz band. This helps optimize the utilization of both frequency bands, as the 5GHz band typically offers higher data rates and less interference compared to the 2.4GHz band. By configuring Client Band Select, clients will preferentially connect to 5GHz access points, which can help balance the load across the network and improve overall performance

Oops - option 'c' has a typo. It should read: "C. OEAP Split Tunnel"

A. Client Band Select To encourage clients to preferentially use 5GHz access points over 2.4GHz access points, the "Client Band Select" feature should be configured. This feature helps in steering clients to the less congested and higher-performance 5GHz frequency band, which typically offers more available channels and less interference compared to the often crowded 2.4GHz band.

Ref: Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide, Cisco IOS XE Gibraltar 16.12.x “C H A P T E R 47 Information About Configuring Band Selection, 802.11 Bands, and Parameters Band Select Band select enables client radios that are capable of dual-band (2.4 and 5-GHz) operations to move to a less congested 5-GHz access point. The 2.4-GHz band is often congested. Clients on this band typically experience interference from Bluetooth devices, microwave ovens, and cordless phones as well as co-channel interference from other access points because of the 802.11b/g limit of 3 nonoverlapping channels. To prevent these sources of interference and improve overall network performance, configure band selection on the device. …”

Band select enables client radios that are capable of dual-band (2.4 and 5-GHz) operations to move to a less congested 5-GHz access point so the answer is A

What is client band select? Band Select is Cisco's terminology for Band Steering. When enabled it encourages stations onto the 5 GHz band. This is achieved by suppressing 2.4 GHz probe response frames to station probe requests and by responding with 5 GHz probe response frames first.

A is correct

A is correct answer

Band select enables client radios that are capable of dual-band (2.4 and 5-GHz) operations to move to a less congested 5-GHz access point. The 2.4-GHz band is often congested.