RUCKUS Updated RCWA Exam Questions and Answers by omer

RSSI (Received Signal Strength Indicator)is a key measurement representing the power level of a received RF signal. It is typically displayed indBm (decibel-milliwatts), a logarithmic unit that expresses the power relative to 1 milliwatt. In Wi-Fi systems, RSSI values usually range between–30 dBm (excellent)and–90 dBm (very weak).

According to theRUCKUS One Online Helpand theRUCKUS Analytics 3.5 User Guide, signal strength metrics shown in dashboards, client views, and RF reports are represented indBmfor consistency across platforms. This allows network engineers to correlate signal levels with client connectivity performance and thresholds used for roaming or troubleshooting.

Other units such asdBirefer to antenna gain,Wattsmeasure absolute power (not typically used in client reporting), andOhmsmeasure resistance. Thus,dBmis the correct and standard unit used for RSSI measurement in RUCKUS and all IEEE 802.11-based systems.

When a valid SSL certificate is installed onSmartZone, it is not automatically applied to all services. TheWISPr (Wireless Internet Service Provider roaming) portalmust have the certificate explicitlymappedto it in theWeb Authentication settings.

According toRUCKUS One Online Help – Certificate Management and Portal Configuration, SSL certificates must be bound to individual services such asWISPr,SmartZone GUI, orAP web services. If a certificate is uploaded but not mapped, the portal continues using the default system certificate, leading to trust or validation errors for guest users.

The certificate does not need to be a wildcard, and WISPr can share a certificate with other services as long as it’s properly assigned.

When configuring an802.1X-secured WLAN, RUCKUS systems such asSmartZone,RUCKUS One, orRUCKUS Cloudtypically rely on anexternal RADIUS serverfor user authentication. However, in the event of acontroller failure or connectivity loss to the RADIUS server,RUCKUS APs can continue to authenticate users locally if thelocal user databaseis enabled and configured.

TheLocal Authentication Databaseallows APs or controllers to store a limited set of credentials that can be used when external AAA services are unavailable. This ensurescontinued access and redundancyfor critical WLANs without requiring external dependency. According toRUCKUS One Online Help – WLAN Configuration and AAA Settings, enabling theLocal Authentication Databaseprovides fallback authentication for 802.1X clients during system or connectivity failures.

In contrast, theproxyandnon-proxymodes define how authentication requests are relayed to the RADIUS server, whileDynamic PSK (DPSK)is a separate authentication method that replaces 802.1X with per-user keys.

The exhibit shows avirtual SmartZone (vSZ)configuration running in a VMware environment withthree separate virtual NICs (vNICs), each mapped to a different port group:Management,Control, andCluster.

According toRUCKUS One Online Help – SmartZone Interface ConfigurationandRUCKUS AI Documentation – SmartZone High-Scale Architecture, this design is specific tovSZ-H (High-Scale)deployments, which requirethree distinct network interfacesfor distributed control, management, and cluster synchronization.

Thethree NIC mappingsconfirm physical or virtual separation of traffic for scalability and redundancy (AandE).vSZ-E(Essentials) requires onlytwo interfaces(Management and Control) and does not use a dedicated cluster interface, distinguishing it from vSZ-H (D).

There is no indication of a four-node cluster in the exhibit, and SmartZone appliances typically show node counts under the Cluster Dashboard, not at the NIC configuration stage.

Thus, based on the configuration, this is avSZ-Hsystem withthree NICs and three port groups, each serving a dedicated function.