Maintaininglow airtime utilizationis key to achieving high efficiency and performance in Wi-Fi networks. RUCKUS recommends minimizing factors that increase channel contention and protocol overhead.

PerRUCKUS One Online Help – Airtime Management and OptimizationandRUCKUS AI Documentation – Channel Utilization Insights, the following actions are most effective:

(A) Limiting older/legacy clients:802.11a/b/g clients transmit at lower rates and occupy more airtime per packet.

(D) Ensuring sufficient AP capacity for clients:Proper AP density ensures users are distributed evenly, reducing per-AP contention.

(F) Mitigating non-802.11 interference:Removing microwave ovens, Bluetooth devices, and other RF noise sources prevents wasted airtime from retries.

Adding more SSIDs (WLANs) increases management frame overhead, and full transmit power causes excessive cell overlap—both raise airtime use.

AnEthernet Port ProfileinSmartZonedefines wired interface behavior and port settings for access points that have multiple Ethernet ports. These profiles are used to configure connectivity, security, and redundancy on wired links between APs and the upstream network.

According to theRUCKUS One Online Help – AP Ethernet Port ProfilesandSmartZone 5.x Configuration Guide, the following parameters are supported:

Port Speed (A):Defines link negotiation—Auto, 10/100/1000 Mbps, or fixed rate.

Spanning Tree Mode (D):Controls loop prevention through STP configuration on AP Ethernet ports.

802.1X Authentication (E):Enables port-based authentication for secure wired access on AP Ethernet interfaces, commonly used in hospitality and MDU deployments.

Other listed options—LAG creation(handled via controller-side link aggregation configuration),number of clients(a WLAN-level setting), andTunnel Profile selection(handled under WLAN or Zone configuration)—are not part of the Ethernet Port Profile feature.

Thus, the correct answers areA (Port speed),D (Spanning Tree mode), andE (802.1X Authentication).

In this layout, the indoor APs are centrally mounted to provide even signal distribution in all directions, while outdoor APs are wall-mounted facing the exterior coverage zone.

According toRUCKUS One Online Help – Antenna Selection and DeploymentandRUCKUS AI Documentation – RF Design Guidelines, the best configuration for complete coverage is:

Indoor space:UseOmni-Directional antennas, which radiate uniformly in 360° for even indoor coverage and minimal dead zones.

Outdoor space:UsePatch antennas, which aresemi-directionalwith a 60°–90° beamwidth ideal for covering patios, courtyards, or building perimeters without wasting signal behind the AP.

Yagi antennasare highly directional and suited for long-distance point-to-point links, not area coverage.Semi-directional indoor antennasare unnecessary unless indoor partitioning or wall density requires focused energy.

This combination—Omni indoorsandPatch outdoors—provides optimal performance for mixed indoor-outdoor designs and aligns withRUCKUS high-density deployment best practices.