UPSC Prelims 2015 – Question 32

Q: 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:

a) 1 and 2 only

b) 3 only

c) 1 and 3 only

d) 1, 2 and 3

The correct answer is 1 and 3 only. 

Near Field Communication (NFC)  

• It is a contactless communication technology based on an electromagnetic radio frequency (RF). Hence, Statement 1 is correct. 
• It uses a base frequency of 13.56 MHz. 
• It is perfectly designed to exchange data between two devices through a simple touch gesture. 
• It is designed for an operating distance of a few centimetres. Hence, Statement 2 is incorrect. 
• This makes it more difficult for attackers to record the communication as compared to other wireless technologies which have a working distance of several meters. 
• It can use encryption when sending sensitive information. Hence, Statement 3 is correct. 

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