350-401 Question 20
Select 3You are designing a wireless network for a corporate office with multiple floors. The office will support a high density of users utilizing bandwidth-intensive applications such as video conferencing and file sharing. Which of the following wireless design principles should you prioritize to ensure optimal network performance and coverage?
- A
Perform a site survey to identify sources of interference and optimal access point placement.
- B
Utilize 2.4 GHz frequency band exclusively to maximize range and avoid coverage gaps.
- C
Design for a high number of smaller cells with lower transmit power to address user density.
- D
Place access points near windows to maximize signal propagation outside the building for roaming users.
- E
Implement channel bonding on the 5 GHz band to increase throughput while minimizing co-channel interference.
Show answer and explanation
Correct answers: A, C, E
Explanation
In high-density wireless network environments, it is crucial to perform a site survey to identify interference and optimize access point placement. Designing smaller cells with lower transmit power ensures a better distribution of wireless resources and minimizes interference. The 5 GHz band is preferred due to its larger number of non-overlapping channels, and channel bonding can further enhance throughput when planned correctly. These principles collectively ensure optimal network performance and coverage for bandwidth-intensive applications.
- A. Correct.
Performing a site survey is critical to identifying interference sources, understanding the building structure's impact on wireless signals, and determining the optimal placement of access points, ensuring proper coverage and performance.
- B. Incorrect.
Exclusively using the 2.4 GHz frequency band is not recommended for high-density environments as it has fewer channels and is more prone to interference than the 5 GHz band.
- C. Correct.
Designing for a high number of smaller cells with lower transmit power helps in reducing interference between access points in dense environments and allows better performance for high user density.
- D. Incorrect.
Placing access points near windows generally leads to signal leakage outside the building and does not contribute to better performance for internal users. This is not aligned with proper enterprise wireless design principles.
- E. Correct.
Channel bonding on the 5 GHz band can increase throughput and is generally utilized in high-performance environments. However, careful planning is required to avoid co-channel interference, but it remains a valuable principle for high-density scenarios.