Virtual Bluetooth Low Energy (vBLE) JN0-452 Practice Questions (Page 2)

Questions 6–10

1. 6expert · hard

   A museum wants to trigger a different audio guide track when a visitor is near a specific painting. They are using vBLE. The administrator has created a virtual beacon for the painting. However, visitors are sometimes triggering the audio for a nearby painting instead of the one they are looking at. The paintings are 3 meters apart. What is the most effective way to ensure the correct audio track is triggered?

   • AUse BLE asset tracking to track the visitor's phone instead of virtual beacons.
   • BReduce the transmit power of the virtual beacons so their range is limited to approximately 1-2 meters.
   • CIncrease the transmit power of the virtual beacons to ensure the signal is strong enough to be received clearly.
   • DAssign the same UUID to all beacons and use different Major values for each painting.
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2. 7expert · hard

   A retail store is using vBLE for proximity notifications. Customers with the store's app are not receiving the 'welcome' notification when they enter the store, although the wayfinding feature works correctly once they are inside. The virtual beacon for the entrance is placed on the map and assigned to the AP near the door. What is the most likely cause of this issue?

   • AThe customers' phones are not connected to the store's Wi-Fi network.
   • BThe transmit power of the entrance beacon is too low, so the signal does not extend far enough outside the store to trigger the notification.
   • CThe access point at the entrance has BLE scanning enabled, which is interfering with the broadcast.
   • DThe UUID of the entrance beacon is different from the UUID used for the wayfinding beacons.
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4. 8application · medium

   A sports stadium wants to send a special offer to fans' mobile app when they are near the team merchandise store. The app is already integrated with the Juniper Mist SDK. The administrator has created a virtual beacon at the store's location. What must be configured in the Mist portal to ensure the notification is triggered only when a fan is within a specific distance of the store?

   • AEnable BLE scanning on the access points to detect the fan's phone and send the notification.
   • BAdjust the transmit power and the beacon's signal parameters to define the desired range of the proximity zone.
   • CConfigure the app to use GPS to determine the fan's location instead of relying on the virtual beacon.
   • DSet the appropriate UUID, Major, and Minor values for the virtual beacon so the app can identify it.
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5. 9application · medium

   A retail chain is deploying indoor location services across 50 stores. They want to guide customers to specific product aisles using their mobile app, but they cannot install physical beacons due to store layout restrictions and maintenance costs. The solution must leverage the existing Juniper Mist access points and provide sub-5-meter accuracy. What should the administrator configure in the Mist portal?

   • ACreate virtual beacons and assign them to the appropriate access points, then configure the mobile app to listen for the vBLE UUIDs.
   • BConfigure the access points to broadcast a single site-wide SSID and rely on Wi-Fi RSSI for indoor positioning.
   • CDeploy physical BLE beacons at each aisle and register them in the Mist portal for asset tracking.
   • DEnable Bluetooth scanning on the access points and use the Mist mobile SDK to triangulate the customer's position from received signal strength.
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6. 10expert · hard

   A hospital is deploying a wayfinding app for patients and visitors. The administrator has placed virtual beacons on the floor plan. During testing, they find that the app works well in open areas but provides inaccurate directions at intersections and near elevators. What is the most likely reason for this issue, and what is the best solution?

   • AThe beacons are not broadcasting at a high enough power. The solution is to increase the transmit power of all beacons.
   • BThe app is using GPS instead of vBLE. The solution is to disable GPS in the app settings.
   • CThe elevators are causing RF interference. The solution is to remove the beacons near the elevators.
   • DThe beacons near intersections are too close together, causing signal ambiguity. The solution is to space them further apart and ensure they are not placed directly at the intersection point.
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