Create a custom practice set
Pick category, difficulty, number of questions, and time limit. Start instantly with your own quiz.
Generate QuizGK Question
Which technology enables mobile payments by tapping a smartphone near a payment terminal?
- Bluetooth
- NFC
- Wi-Fi Direct
- Infrared
Answer: NFC
NFC (Near Field Communication) enables contactless payments by allowing two devices to communicate when placed within 4 cm. Used in Google Pay, Apple Pay, and RuPay Contactless. It operates at 13.56 MHz and supports secure element storage for payment credentials.