ITPEC IP October 2021 Question 74
ITPEC IP October 2021 — Question 74 of 100
Wirelessly connecting game controllers to a nearby console is a typical Bluetooth use. Bluetooth is designed for short-range communication among personal and household devices, including controllers, keyboards, headphones, and phones.
Answer (a)
Why not others:
- car navigation receives positioning signals from GPS satellites
- a phone reads a QR code optically with its camera
- an automatic gate commonly reads an IC ticket using contactless RFID or NFC technology
Key rule: Bluetooth forms short-range wireless links between nearby devices; it is distinct from satellite navigation, optical codes, and contactless card systems.
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