350-401 Question 32
Select 3A network administrator is designing a wireless network for a university lecture hall that accommodates 300 students. The lecture hall is equipped with high-density seating, and most students use at least two devices (laptops and smartphones) connected to the network simultaneously. Which of the following configurations would best ensure optimal wireless performance for the high-density environment?
- A
Deploy multiple access points (APs) using 20 MHz channel widths in the 5 GHz band.
- B
Configure all access points to use maximum transmit power to cover the entire lecture hall.
- C
Enable band steering to encourage devices to connect to the 5 GHz band instead of 2.4 GHz.
- D
Use a single SSID for all access points to simplify client roaming.
- E
Disable lower data rates to reduce airtime consumption for legacy devices.
Show answer and explanation
Correct answers: A, C, E
Explanation
High-density environments, such as a lecture hall with hundreds of clients, require careful planning to ensure optimal wireless performance. Deploying multiple APs with 20 MHz channel widths in the 5 GHz band reduces interference and provides sufficient capacity for many devices. Band steering ensures that devices use the 5 GHz band, which is less crowded and has more available channels. Disabling lower data rates minimizes airtime usage for legacy devices, improving overall network efficiency. Configurations like maximum transmit power and a single SSID, while useful in specific scenarios, do not directly address the challenges unique to high-density environments.
- A. Correct.
Deploying multiple APs with 20 MHz channels in the 5 GHz band is ideal for high-density environments as it reduces channel overlap and provides more channels for clients to connect to.
- B. Incorrect.
Configuring all APs to use maximum transmit power can cause interference and is not recommended in high-density areas. Instead, transmit power should be carefully adjusted to avoid overlapping coverage.
- C. Correct.
Enabling band steering encourages devices to connect to the 5 GHz band, which is less congested and offers more non-overlapping channels, improving performance in high-density environments.
- D. Incorrect.
Using a single SSID is beneficial for client roaming but does not directly address the issues of client density or interference in high-density environments.
- E. Correct.
Disabling lower data rates reduces airtime consumption for legacy devices and forces clients to use higher data rates, which improves efficiency in high-density settings.