FASTag, used for paying tolls on national highways, works on which technology?
- A.Radio frequency identification
- B.Global positioning system
- C.Near field communication
- D.Optical character recognition
Show answer
Correct answer: A. Radio frequency identification
Explanation
The correct answer is A, radio frequency identification. A FASTag is a sticker on the windscreen that a reader at the toll plaza identifies by radio, so the toll is deducted from a linked account and the vehicle need not stop; the system is called National Electronic Toll Collection and is run by the National Payments Corporation of India. Option B is wrong because the global positioning system gives location and is used for navigation and for tracking vehicles, not for the tag itself. Option C is wrong because near field communication is the technology of contactless cards and phone payments, which work only at a few centimetres. Option D is wrong because optical character recognition reads printed text, and number plate reading is a separate arrangement.