COMPTIA A+ Practice Exam

Question: 1 / 525

What is the maximum distance for NFC communication?

20 MHz and 40 MHz

75W

10 cm

The maximum distance for NFC (Near Field Communication) communication is indeed 10 cm. NFC is designed to enable devices to communicate when they are extremely close to one another, typically within a range of about 4 inches (or 10 cm). This short range is intentional to enhance security and minimize any chance of interference with other wireless communications.

Other choices do not refer to the distance limitation of NFC. The options that mention frequencies, such as 20 MHz and 40 MHz, or 13.56 MHz, pertain to the operating frequencies of different wireless technologies rather than their communication range. The choice concerning 75W seems unrelated to NFC as it reflects power output rather than distance. Therefore, the correct answer highlights the fundamental aspect of NFC technology, which is its design for close-range communication for secure data exchange.

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13.56 MHz

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