ITPEC IP October 2022 Question 12
ITPEC IP October 2022 — Question 12 of 100
NFC provides radio communication over a very short distance, commonly about 10 cm, for devices such as IC cards and tags. Its short range supports tap-based payments, access cards, identification, and small data exchanges between nearby devices.
Answer (a)
Why not others:
- tens-of-meters wireless LAN communication describes Wi-Fi
- infrared communication is a different optical wireless technology
- satellite-based positioning describes GNSS or GPS
Key rule: Near Field Communication is intentionally short range and is activated by bringing compatible devices or tags very close together.
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