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Exam : CompTIA RF0-001
Title : RFID+ Certification


1. When installing equipment into a proposed interrogation zone based on the site diagram, a technician observes that the cooling fans at the dock doors are directly in the way of the dock stands requiring installation. Which of the following actions should the technician take?
A. Cancel the installation because there are physical constraints preventing them from completing the job as designed.
B. Remove the fans; install the dock stands, and then remount the fans to the dock stand to complete the job.
C. Remove the fans and place them on the floor just outside of the proposed interrogation zone.
D. Contact the project manager to arrange a meeting with site management and determine the best solution.
Answer: D

2. RFID printers are able to encode a single tag at a time because of their ability to isolate a tag. This is achieved:
A. by positioning and tuning the antenna.
B. because metal case blocks external interference allowing for the tag to be isolated.
C. because characteristics of far-field communication allow for only one tag to be encoded.
D. by ensuring that there is at least 8 inches (20 centimeters) between inserts.
Answer: A

3. In a high frequency (HF) passive system, the anticipated read range should be:
A. less than 3.2 feet (one meter).
B. between 3.2 and 16 feet (one and 5 meters).
C. greater than 32 feet (10 meters).
D. between 16 and 32 feet (5 meters and 10 meters).
Answer: A

4. Which of the following is the established frequency for high frequency (HF) RFID tags in the United States?
A. 2.45GHz
B. 13.56MHz
C. 860MHz
D. 915MHz
Answer: B

5. A customer has an existing RFID system that has been functioning accurately. The customer starts a new product line and observes a dramatic decrease in read rates. Which of the following would be the FIRST step to take to determine the cause of the decreased read rates?
A. Do a site assessment for sources of interference.
B. Examine the currently installed equipment for failed parts.
C. Perform a tag placement test on the new product.
D. Attempt to read the new product using a handheld interrogator.
Answer: C

6. In an RFID implementation a technician receives a support ticket indicating that users are no longer able to see items in a specific discrete area. Which of the following items is the cause?
A. Tags are being plastic wrapped.
B. The communication network is down.
C. The RFID interrogator has lost power.
D. The building power is down.
Answer: C

7. Cyclic Redundancy Check (CRC) is a form of:
A. frequency evaluation.
B. data validation.
C. communication.
D. serial number validation.
Answer: B

8. Which of the following will affect the performance when a technician is designing an interrogation zone? (Select TWO).
A. Read operations take longer than write operations.
B. Write operations take longer than read operations.
C. Once the tag has been read, writing operations are faster.
D. The maximum write range is less than the maximum read range.
E.The maximum read range is less than the maximum write range.
Answer: BD

9. Circular polarized antennas are the BEST choice when:
A. the tags are oriented in a variety of directions.
B. the orientations of the tags are controlled.
C. a longer read distance is required.
D. a higher speed is required.
Answer: A

10. As the distance between tags in a passive ultra high frequency (UHF) RFID interrogation zone decreases, which of the following is affected?
A. Time required to power the tag
B. Distance at which the tag can be read
C. Coverage area of the interrogation zone
D. Power level of the field
Answer: B

11. An engineer plans to use RFID to track car engines in an automotive product line. The read range requirement needs to be a maximum of twelve feet (3.7 meters). Which of the following RFID technologies would be BEST to implement?
A. Passive low frequency (LF)
B. Passive ultra high frequency (UHF)
C. Passive high frequency (HF)
D. Active
Answer: B

12. All of the following are true of widely implemented "slap and ship" programs EXCEPT they:
A. make it difficult to optimize label application for the container.
B. are more susceptible to electrostatic discharge (ESD) than in-line automatic applicators.
C. are lower in cost than application in manufacturing.
D. are more likely to break the bond between the antenna and the chip.
Answer: C

13. An RFID application at an automobile distributorship must be able to inventory the cars from a central location. Which of the following RFID technologies would work BEST in this application?
A. Active UHF
B. Passive high frequency (HF)
C. Passive ultra high frequency (UHF)
D. Active surface acoustic wave (SAW)
Answer: A

14. Multiple tags are present in an interrogators RF field and must be identified by the interrogator, which of the following techniques should be used?
A. Dense reader mode
B. Filtering
C. Encryption
D. Anti-collision
Answer: D