350-401 Practice Question: Deploying a new wireless network in a large…

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  Centralized WLC architecture, because it provides better RF management and security.

  Why it's wrong here

  The centralized WLC model forces all wireless user traffic to be encapsulated in CAPWAP and forwarded to the WLC before reaching the network edge. For real-time applications such as voice or video, this hairpin path introduces unnecessary latency, jitter, and a potential bottleneck at the controller. While a centralized controller can offer consistent RF management and security-policy enforcement, those features are available in other architectures and do not compensate for the added delay in this latency-sensitive warehouse design.

• ✓

  Converged access (SD-Access) wireless, because it allows local switching of traffic at the access layer, reducing latency.

  Why this is correct

  Converged access (SD-Access) wireless is correct because fabric-enabled access points can switch data traffic locally at the access layer rather than tunneling it to a central WLC. The WLC still handles control-plane functions like radio resource management, but user data moves directly toward the fabric edge, which minimizes network delay and jitter for real-time applications. This local switching is exactly what makes SD-Access wireless preferable for a warehouse with latency-sensitive traffic.

• ✗

  Centralized WLC architecture, because it requires fewer access points to cover the warehouse.

  Why it's wrong here

  The number of access points needed in a warehouse is driven by coverage requirements such as signal attenuation, physical obstructions, client density, and minimum data-rate thresholds, not by whether the architecture is centralized. A centralized WLC does not extend RF range or reduce the AP count required to cover the same space. Therefore, equating the centralized model with fewer APs confuses architecture with RF planning.

• ✗

  Converged access (SD-Access) wireless, because it requires fewer WLCs to manage the network.

  Why it's wrong here

  While SD-Access wireless can centralize control, it still relies on WLCs for functions like RRM, client mobility, and authentication, and real-world designs usually deploy multiple WLCs for redundancy and scale. The primary benefit of SD-Access wireless is local data-plane switching to reduce latency, not the elimination or reduction of WLCs. Thus claiming it requires fewer WLCs misstates the architecture's actual advantage.

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