When an iBeacon wakes an iOS app, will the WiFi radio power up?

Scenario: Backgrounded iOS app monitoring an iBeacon region. The device's WiFi radio was powered down by iOS (30 minutes of inactivity).

When the device enters the region of the the iBeacon and the app wakes to handle the location notification, will the WiFi radio power up and connect to an available remembered WiFi network?

Copyright Notice：Content Author:「Eric」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/27536143/when-an-ibeacon-wakes-an-ios-app-will-the-wifi-radio-power-up

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