Virtual Bluetooth Low Energy (vBLE) JN0-452 Practice Questions (Page 4)

Questions 16–20

1. 16expert · hard

   A logistics company is tracking high-value packages with BLE tags in a large distribution center. The tags are set to a low advertisement rate to conserve battery. The administrator notices that the location of the packages is updated infrequently and is often inaccurate. The company needs near-real-time tracking. What is the best solution that balances accuracy and battery life?

   • AIncrease the advertisement rate on the BLE tags to provide more frequent RSSI samples to the Mist cloud.
   • BSwitch to Wi-Fi-based tracking by having the tags connect to the wireless network.
   • CAccept the current accuracy and rely on manual scans of the packages at key checkpoints.
   • DDeploy more access points in the distribution center to improve the density of BLE scanners.
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   An airport is deploying a wayfinding solution in its terminal. The administrator has placed virtual beacons on the floor plan in the Mist portal. During testing, they notice that the mobile app is not receiving any vBLE broadcasts from the access points. The APs are online and passing traffic. What is the most likely cause of this issue?

   • AThe access points have BLE scanning enabled, which prevents them from broadcasting.
   • BThe virtual beacons have not been assigned to any access points.
   • CThe mobile app is not connected to the airport's Wi-Fi network.
   • DThe UUID of the virtual beacon does not match the UUID in the mobile app.
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   What is a common cause of vBLE signal issues?

   • AIncorrect beacon placement or configuration
   • BThe client device does not have a SIM card
   • CThe access point's Wi-Fi radio is disabled
   • DThe Mist cloud is not reachable
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A hospital is using vBLE to track wheelchairs. The administrator has enabled BLE scanning on the APs and the wheelchairs are broadcasting. The wheelchairs are showing up on the map, but their location is only accurate to within 10-15 meters. The hospital needs better accuracy. What is the most effective configuration change to improve the location accuracy?

   • AIncrease the BLE advertisement rate on the wheelchairs if the device firmware allows it.
   • BIncrease the transmit power of the virtual beacons in the hospital.
   • CMove the wheelchairs to a location with less Wi-Fi interference.
   • DDisable BLE scanning on some APs to reduce the amount of data being processed.
   Reveal Solution Discussion Select an answer first
6. 20foundation · easy

   How does vBLE operate in a Juniper Mist environment?

   • AIt requires every client device to have a special vBLE chip
   • BIt uses access points to transmit virtual BLE beacons that client devices can detect
   • CIt uses dedicated hardware beacons that must be installed at each location
   • DIt relies on the cloud to process all BLE signals from third-party devices
   Reveal Solution Discussion Select an answer first