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questions and answers. 
By default, your phone uses Private DNS with all networks that 
can use Private DNS. We recommend keeping Private DNS 
turned on.   
Open Settings and touch Network & Internet > Private DNS 
to turn Private DNS on or off, or change its settings. 
Connected Devices 
Bluetooth 
Open Settings and touch Connected devices > Connection 
preferences > Bluetooth. You can turn Bluetooth on or off and 
configure your Bluetooth connections. See Connecting to 
Bluetooth Devices. 
NFC and Android Beam 
Open Settings and touch Connected devices > Connection 
preferences. You can switch on NFC to exchange data with 
another NFC-enabled device when they touch each other or in 
close proximity. Touch Android Beam and turn it on if you want 
to share web pages, contact information, YouTube videos or 
other content on your phone to another NFC-capable device. 
See Exchanging Data via NFC.