Exam-style question
Try this first
Which statement best describes a characteristic of an RFID system?.
- A.It always requires the tag to be directly visible to the reader
- B.It uses radio communication between a reader and a tag
- C.It can only store images captured by a lens
- D.It prints information by applying liquid ink to paper
Model answer
What a good answer should say
- It uses radio communication between a reader and a tag
Explanation
Why this works
RFID uses radio signals to communicate between an RFID reader and a tag. This makes it suitable for identifying tagged objects without relying on a printed code being optically scanned.
Common mistake
No common mistake is linked to this question yet.