Two phones a few feet apart exchange a contact only after both users confirm a pairing code on the screen. Which connection is that?
Select an answer to reveal the explanation.
Short Explanation
You have two phones nearby, and both users confirm the same code before sharing the contact. That confirmation is Bluetooth pairing, which establishes trust between the phones. Near-field communication, a cellular call, or a VPN is not the connection described here.
Full Explanation
Bluetooth pairing is a short-range connection that lets two devices establish trust, often by asking users to confirm a code or prompt on both screens. Here, the phones are a few feet apart and exchange a contact only after both users confirm the pairing code, so Bluetooth pairing fits the described connection. Near-field communication is designed for very close-range exchanges, typically with devices tapped or held close together; it does not always display a pairing code for users to accept, so that description does not fit. A cellular call uses the carrier’s network, but nearby phones do not need to place a call in order to exchange a contact through Bluetooth. A VPN creates an encrypted connection to a remote network; it does not pair nearby phones by showing a code on each screen. Exam caveat: pairing establishes a trusted link, but the contact-sharing feature must still be supported by the phones’ software. Practical check: confirm the code on both phones, send a test contact, and verify that it arrives on the second phone. If the transfer fails, check that both users accepted the matching code and that contact sharing is available on both phones.