Which technology is commonly used for identification and tracking purposes, utilizing electromagnetic fields to automatically identify and track tags attached to objects?
Radio-frequency identification (RFID)
Bluetooth
Near Field Communication (NFC)
Barcode
Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags that are attached to objects. The tag contains electronically stored information which can be read from up to several meters away. Unlike NFC which requires close proximity, RFID can work over greater distances; therefore, Bluetooth and NFC, while also wireless communication technologies, are not the correct answers as they serve different purposes and operate differently. Barcodes require a visual scanner to read information, which differs from RFID's radio frequency method.
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
All Information Technology Package plans include the following perks and exams.
Our pricing is simple. Full access to all certifications and exams in each package, for one price.
As many practice tests for as many topics as you want.
Use study mode non-stop, no limits.
Access to our AI assistant, Bash, trained to help you pass your exam.
Track your scores over time in study mode and report cards.
See how you improve over time, and where you need to focus.
Access our store with even bigger discounts than before.
Unlimited access to all performance questions and be prepared for the real thing.
All Information Technology Package plans include unlimited access to the following study materials.
Create an account or sign in to access our study materials.