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.(2015)
a) 1 and 2 only
b) 3 only
c) 1 and 3 only
d) 1, 2 and 3
Answer: C
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 smartphone.
Source: http://www.nearfieldcommunication.org/about-nfc.html
