With reference to ‘Near Field Communication (NFC) Technology’, which of the following statements is/are correct :
(1) It is a contactless communication technology that uses electromagnetic radio fields.
(2) NFC is designed for use by devices which can be at a distance of even a metre from each other.
(3) NFC can use encryption when sending sensitive information.
Select the correct answer using the code given below.
Answer:
(c)
CA
Near field communication, abbreviated NFC, is a form of contactless communication based on electromagnetic radio fields between devices like smartphones or tablets. Contactless communication allows a user to wave the smartphone over a NFC compatible device to send information without needing to touch the devices together or go through multiple steps setting up a connection. Bluetooth can connect to devices up to 32 feet away, yet near field communication can connect to devices at a maximum distance of 4 centimeters on average. Both businesses and individuals benefit from near field communication technology. By integrating credit cards, subway tickets, and paper coupons all into one device, a customer can board a train, pay for groceries, redeem coupons or store loyalty points, and even exchange contact information all with the wave of a smartphoneTikdam: near field so obviously contactless statement 2 is wrong – even a metre, it’s for a few cm only like your metro smart card