Near Field Communication Flashcards, test questions and answers

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What is Near Field Communication?

Near Field Communication (NFC) is a new technology that allows devices to securely communicate with each other over short distances. NFC is a relatively recent development, but it has already been used in many areas of life. It is becoming increasingly popular as an easy way to transfer data and make payments without the need for physical contact or typing in information. NFC works by using radio frequencies to send and receive data between two compatible devices when they are held very close together. This proximity makes it much more secure than other methods of communication, as the data cannot be intercepted from further away. NFC also requires less power than Bluetooth and Wi-Fi, which makes it ideal for low-power applications such as payment terminals or access control systems. One of the most common uses for NFC technology is contactless payment systems. Many credit cards now feature an NFC chip that can be used in place of entering a PIN code at retail checkout counters, making transactions faster and more secure. The same type of system can also be used to pay transit fares on buses and trains, or even to open locked doors with an RFID tag attached to your keychain or phone case. Another area where NFC is becoming increasingly popular is digital access management systems in offices and public buildings such as universities or hospitals. Instead of having to enter codes into keypads, these systems can use NFC tags that are read by a reader when you approach the door with your compatible device (typically a smartphone). This not only makes entry easier but also more secure since you need both your device’s credentials and physical proximity for entry – something that cannot be easily replicated by someone else trying to gain unauthorized access. In addition to these specific uses for Near Field Communication technology, there are many other potential applications being developed including shared file transfers between phones, interactive marketing campaigns featuring coupons stored on phones via NFC tags, portable medical records stored on smart cards with embedded chips that can only be accessed via authorized clinics equipped with readers – just about anything you could imagine requiring secure data exchange over short distances could potentially benefit from this revolutionary new form of communication.