In the Cisco Unified architecture, which action by a workgroup bridge that is configured as a mobile station causes the WGB to search for a new parent association and roam to the new parent?

Question

Options

• AIt encounters a poor RSSI.
• BIt gets a low battery notification.
• CIt travels beyond a specified distance.
• DIt confronts a new WLAN.

• A
  88% (22)
• C
  8% (2)
• D
  4% (1)

Explanation

A Workgroup Bridge (WGB) configured as a mobile station monitors signal quality and triggers a roam when it detects a poor Received Signal Strength Indicator (RSSI), meaning the current parent AP's signal has degraded below an acceptable threshold - this is the standard 802.11 roaming trigger mechanism used in Cisco's mobility architecture.

Why the distractors are wrong:

• B (low battery): Battery status is a client-side power management concern and has no bearing on association decisions in the WGB roaming logic.
• C (distance): WGBs don't use physical distance measurements to trigger roaming; Wi-Fi infrastructure has no native GPS or distance-awareness - signal quality (RSSI) is the proxy for distance.
• D (new WLAN): Encountering a new SSID/WLAN doesn't cause the WGB to roam; a WGB seeks the same SSID on a better AP, not a different network.

Memory tip: Think of RSSI as the WGB's "gas gauge" - when the signal tank runs low, it pulls into the nearest AP "station" for a refill. Poor signal = roam trigger, every time.

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