With reference to ‘Near Field Communication (NFC) Technology’, which of the following statements is/are correct?
- It is a contactless communication technology that uses electromagnetic radio fields
- NFC is designed for use by devices which can be at a distance of even a metre from each other
- NFC can use encryption when sending sensitive information.
Select the correct answer using the code given below.
Detailed Explanation:
✅ Statement 1 – Correct: NFC (Near Field Communication) is a contactless communication technology that uses electromagnetic radio fields operating at 13.56 MHz frequency to enable data exchange between devices.
❌ Statement 2 – Incorrect: NFC is designed for very short-range communication, typically requiring devices to be within 4-10 cm (a few centimeters) of each other, not a metre. This short range is a deliberate security feature.
✅ Statement 3 – Correct: NFC supports encryption protocols and secure elements to protect sensitive data during transmission, making it suitable for contactless payments and secure access control applications.
Question 5 of 5 Internet and Communication Networks
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