RCWA RUCKUS Exam Lab Questions

OFDMA (Orthogonal Frequency Division Multiple Access) is one of the core features introduced in IEEE 802.11ax (Wi-Fi 6) . It divides a channel into smaller subcarriers called Resource Units (RUs) , allowing an AP to communicate with multiple clients simultaneously, both on uplink and downlink.

According to the RUCKUS One Online Help – Wi-Fi 6 Features Overview , OFDMA improves spectrum efficiency, reduces latency, and increases throughput in high-density environments. RUCKUS APs such as the R750 and R850 use OFDMA in coordination with RUCKUS AI’s client traffic analysis to allocate resources dynamically.

In contrast, MU-MIMO also supports multi-user communication but only in one direction (downlink for 802.11ac Wave 2, both for 11ax). QAM256 enhances modulation efficiency but doesn’t enable concurrent multi-client service.

Cloud Auto-Upgrade is a RUCKUS One feature that automatically updates AP firmware to the latest stable release without requiring manual scheduling.

According to RUCKUS One Online Help – Firmware and Lifecycle Automation , this capability ensures security compliance and performance optimization across managed APs. Administrators can opt in or out of automatic updates per site or organization.

SmartZone uses manual scheduling via Image Management , while RUCKUS One provides hands-free upgrades integrated into its cloud management platform.

RUCKUS Wi-Fi Planner (Wi-R Planner) is a predictive design tool that helps plan AP placement and coverage before physical deployment. It relies on environmental and hardware data to simulate accurate RF propagation.

According to RUCKUS One Online Help – Wi-Fi Planner Configuration , essential inputs include:

AP model selection (A): Determines transmit power, antenna gain, and coverage pattern.

Building wall materials (C): Define RF attenuation and signal propagation characteristics.

Parameters like DHCP/DNS settings or controller cluster size are not required for predictive modeling—they’re part of post-deployment configuration.

In SmartZone , Generic Routing Encapsulation (GRE) tunnels are used to encapsulate client traffic and forward it to a remote gateway, typically for security or centralized routing.

As described in RUCKUS One Online Help – GRE Tunneling Configuration , a tunnel profile becomes available for WLAN association only when it is explicitly linked to an AP Zone . This ensures that all APs in the zone can apply the correct tunnel endpoint and keying parameters.

If a GRE profile is not mapped to a zone, it will not appear in the WLAN configuration dropdown , even if successfully created.

Other options are incorrect because SmartZone supports GRE for WLANs by design, split-tunnel profiles are optional, and tunnel count limitations are far higher than typical enterprise use.