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With Reference to ‘Near Field Communication (NFC) Technology’, Which of the Following Statements is/are Correct?

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

http://www.in.techradar.com/news/phone-and-communications/What-is-NFCand-why-is-it-in-your-phone/articleshow/38919446.cms


February 2024
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