What is the maximum communication range for NFC technology?

NFC, or Near Field Communication, is specifically designed for short-range communication between devices. The maximum communication range for NFC technology is typically up to 4 inches, which aligns closely with the choice stating "up to 2 inches." This design ensures that interactions are secure and intentional, requiring users to bring their devices very close to one another, often to initiate transactions or data transfers. The limited range minimizes the risk of unauthorized access and enhances safety for tasks such as contactless payments or data exchange.

Other options suggest much longer distances, which do not adhere to the fundamental design principles of NFC technology. NFC's very short effective range is a key attribute that differentiates it from other wireless communication technologies such as Bluetooth or Wi-Fi, which do have much broader operational ranges. This focused range serves to foster a highly secure and direct exchange of information, reinforcing the user experience for everyday tasks.