What does RFID stand for?

What does RFID stand for?

• A. Remote frequency identification
• B. Radio frequency identification
• C. Radio frequency indexing
• D. Radio frequency data

Answer: (B)

RFID is a system that uses radio waves to identify objects. The phrase “Radio Frequency Identification” captures both how the system works (radio frequency signals) and what it does (identify items with a unique ID). The option that uses “Remote” isn’t the established term for this technology, and “Indexing” or “data” don’t describe the standard purpose and mechanism as accurately. In practice, RFID combines a tag and a reader to read the tag’s ID data remotely, often without requiring a direct line of sight.

RFID is a system that uses radio waves to identify objects. The phrase “Radio Frequency Identification” captures both how the system works (radio frequency signals) and what it does (identify items with a unique ID). The option that uses “Remote” isn’t the established term for this technology, and “Indexing” or “data” don’t describe the standard purpose and mechanism as accurately. In practice, RFID combines a tag and a reader to read the tag’s ID data remotely, often without requiring a direct line of sight.