Changed RCWA Exam Questions

dBi is a relative logarithmic measurement used to express antenna gain compared with an ideal isotropic radiator. The “i” explicitly identifies the isotropic antenna as the reference. For example, an antenna specified with 4 dBi gain concentrates RF energy so that its effective gain is 4 dB above that theoretical isotropic reference. By comparison, dBm is an absolute logarithmic power measurement referenced to 1 milliwatt: 0 dBm equals 1 mW. Milliwatts and watts are also absolute units of power. RUCKUS product specifications clearly distinguish these measurements, typically listing antenna gain in dBi while transmitter power and receiver sensitivity are specified in dBm. This distinction is important when calculating link budgets and EIRP because antenna gain and radio output power represent different RF quantities. Therefore, option A, dBi, is the relative measurement. RUCKUS Networks

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An Application Policy in SmartZone defines actions applied to identified applications or categories of traffic traversing a WLAN. Using Deep Packet Inspection (DPI) , RUCKUS APs recognize application types and enforce predefined behaviors.

According to RUCKUS One Online Help – Application Policy Configuration , the supported rule actions include:

(A) QoS: Assigns priority levels to traffic (Voice, Video, Best Effort, Background) for latency and throughput management.

(B) Deny: Blocks specific applications or categories (e.g., streaming or gaming) to preserve network performance.

(D) Rate Limit: Restricts bandwidth available to defined applications, ensuring fair use of airtime and bandwidth resources.

Local Breakout and VLAN Assignment are functions of traffic forwarding and device policy , not application policy. URL filtering is managed under separate content control modules, not part of Application Policies.

The AP Manager Log within SmartZone is dedicated to monitoring access point registration, join processes, firmware version checks, and heartbeat communication with the controller.

As stated in the RUCKUS One Online Help – Log Categories and Troubleshooting and the RUCKUS Analytics 3.5 User Guide – Device Connectivity Diagnostics , the AP Manager Log records messages about:

AP registration attempts

Join authorization success/failure

Firmware mismatch detection and upgrade triggers

The System Log covers controller-level events, the Events Log records systemwide notifications, and the Control Plane Log captures traffic flow analytics.

SmartCast is RUCKUS ' s application-aware wireless Quality of Service technology designed to improve performance for latency-sensitive traffic such as voice and video. SmartCast classifies traffic at the AP and gives appropriate priority to delay-sensitive applications instead of depending entirely on client-side QoS markings. This reduces latency and jitter and provides more consistent voice calls, video conferencing, streaming, and similar real-time applications. SmartCast also incorporates techniques such as airtime fairness and optimized multicast handling to improve spectrum utilization. BeamFlex optimizes adaptive antenna patterns, SmartMesh provides wireless AP backhaul, and ChannelFly optimizes channel selection based on channel performance. Those technologies can improve overall WLAN performance, but they are not the RUCKUS QoS mechanism specifically responsible for addressing application delay and jitter. Therefore, SmartCast is the correct answer. RUCKUS Networks

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