ITGSS Certified Technology Specialist

What is an appropriate description concerning NFC?

1. It provides long-distance communication up to 1 meter.

2. It allows for secure transactions only through passwords.

3. It provides communications across a short distance of approximately 10 cm, used for reading data.

4. It can connect multiple devices simultaneously over Wi-Fi.

The correct answer is: It provides communications across a short distance of approximately 10 cm, used for reading data.

The description that states NFC provides communications across a short distance of approximately 10 cm, used for reading data, accurately captures the essence of Near Field Communication (NFC) technology. NFC operates typically at very close range, generally within about 4 centimeters to 10 centimeters, making it ideal for secure and efficient data exchange between compatible devices. NFC is widely utilized in scenarios such as mobile payments, where the user taps their device to a payment terminal to complete a transaction. Its short-range feature enhances security since it limits potential interception of the communication signal. This attribute distinguishes NFC from other wireless communication technologies that support longer ranges, as well as ensuring that interactions require intentional proximity. The correct choice emphasizes the secure, short-range nature of NFC, which aligns with its use for applications like contactless payment systems and access control, where precise and immediate interaction is essential.