Study for the Internet of Things (IOT102) Test. Access comprehensive flashcards and multiple choice questions, each with hints and explanations. Get prepared for your exam!

Multiple Choice

Which of the following is true about RFID tags in tracking items?

RFID tagging lets you identify and track items without needing to see them directly. The key idea is the Electronic Product Code, a standardized, globally unique identifier stored on the tag. A reader sends radio waves, powers passive tags, and reads back the EPC, often even when the item isn’t in the line of sight or is buried in a stack. That non-line-of-sight capability is a major advantage over barcodes, which require a clear view. Many RFID tags also carry memory, so they can store additional information such as version numbers, batch data, or timestamps. That means statements saying RFID tags are read-only or cannot store version information aren’t generally true; while some tags may be fixed, many are writable and used precisely to retain such details. In short, RFID’s combination of standardized EPC identification and non-line-of-sight reading is what makes it effective for tracking items.

RFID tagging lets you identify and track items without needing to see them directly. The key idea is the Electronic Product Code, a standardized, globally unique identifier stored on the tag. A reader sends radio waves, powers passive tags, and reads back the EPC, often even when the item isn’t in the line of sight or is buried in a stack. That non-line-of-sight capability is a major advantage over barcodes, which require a clear view.

Many RFID tags also carry memory, so they can store additional information such as version numbers, batch data, or timestamps. That means statements saying RFID tags are read-only or cannot store version information aren’t generally true; while some tags may be fixed, many are writable and used precisely to retain such details. In short, RFID’s combination of standardized EPC identification and non-line-of-sight reading is what makes it effective for tracking items.