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CAS-002 · Question #288
CAS-002 Question #288: Real Exam Question with Answer & Explanation
The correct answer is A: The ability to encrypt RFID data in transmission. Passive RFID tags lack the computational power to perform cryptographic operations, making in-transmission encryption the most technically difficult RFID requirement to implement.
Question
An asset manager is struggling with the best way to reduce the time required to perform asset location activities in a large warehouse. A project manager indicated that RFID might be a valid solution if the asset manager's requirements were supported by current RFID capabilities. Which of the following requirements would be MOST difficult for the asset manager to implement?
Options
- AThe ability to encrypt RFID data in transmission
- BThe ability to integrate environmental sensors into the RFID tag
- CThe ability to track assets in real time as they move throughout the facility
- DThe ability to assign RFID tags a unique identifier
Explanation
Passive RFID tags lack the computational power to perform cryptographic operations, making in-transmission encryption the most technically difficult RFID requirement to implement.
Common mistakes.
- B. Environmental sensors such as temperature, humidity, and shock detectors are commercially available and routinely integrated into active RFID tags for cold-chain and asset condition monitoring.
- C. Real-time location tracking of assets moving through a facility is a primary and well-supported use case for active RFID systems using multiple fixed reader antennas and time-difference-of-arrival techniques.
- D. Assigning a unique identifier - such as an Electronic Product Code - to every RFID tag is the foundational and most basic capability of all RFID systems and requires no special hardware or configuration.
Concept tested. RFID security limitations and encryption constraints
Reference. https://csrc.nist.gov/publications/detail/sp/800-98/final
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