Certified Supply Chain Professional (CSCP) Practice Exam

What is the relationship between active and passive RFID tags?

1. Active tags are more commonly used than passive tags

2. Passive tags have a longer range than active tags

3. Active tags require a power source, whereas passive tags do not

4. Both are equally effective for all applications

The correct answer is: Active tags require a power source, whereas passive tags do not

The correct choice highlights a fundamental distinction between active and passive RFID tags. Active RFID tags are equipped with their own power source, typically a battery, which enables them to broadcast signals over greater distances and often store more data compared to passive tags. This internal power source allows active tags to operate autonomously, making them suitable for applications where longer range and continuous communication are necessary. In contrast, passive RFID tags do not have an onboard power source; they rely on energy transferred from the RFID reader's signal to power their response. This reliance on external power limits their operational range but makes them more cost-effective and smaller. Understanding this relationship is crucial in supply chain management, as selecting the appropriate type of RFID tag can significantly impact the efficiency and effectiveness of tracking and inventory management processes.