RFID+ Certification (RF0-001) Free Practice Test

Question 1

During identification cycles, in which of the following modes will interrogators respond to commands from the network host?

A. Amplitude modulation

B. Half-duplex

C. Autonomous

D. Interactive

Correct Answer: D

Question 2

An RFID interrogator is reading tags on cartons on a conveyor and cartons are directed to the proper truck by electrically-operated gates on the conveyor line. A carton reaches the first gate in one-half second. The decision to open a gate is BEST made by:

A. an interrogator with WiFi capability.

B. an Ethernet connection to the remote server.

C. a universal serial bus (USB) connection to the remote server.

D. an interrogator with an edge-server capability.

Correct Answer: D

Question 3

Which of the following is an attribute of an inductively coupled system [e.g. low frequency (LF), high frequency (HF)] that a capacitively coupled [e.g. ultra high frequency (UHF), uW] system does not have?

A. Inductive coil antenna.

B. Capacitive power circuitry.

C. Inductive dipole antenna.

D. Capacitive material in which to store power.

Correct Answer: A

Question 4

Ideally, as a tag passes though the antenna read window it should be:

A. facing away from antenna.

B. on the same plane as the antenna.

C. at least 30 feet (9.3 meters) from the antenna.

D. inside metal foil.

Correct Answer: B

Question 5

An interrogator that supports four antennas only has two antennas attached and the customer reports that the interrogator is not functioning. Which of the following may be the cause of the problem?

A. The antenna's gain was too high causing the interrogator to overheat.

B. Terminators were not placed on the unused antenna ports.

C. The interrogator must have four antennas connected to operate.

D. The antennas were of different polarization.

Correct Answer: B

Question 6

The length of a passive RFID interrogation zone can be doubled by:

A. adding another antenna on the same side.

B. placing reflective material across from the transmitting antenna.

C. selecting an antenna whose gain is 2dB greater than the original antenna.

D. adding another antenna on the other side.

Correct Answer: D

Question 7

A network connected interrogation zone is not reporting reads, even though operators are passing goods through the zone. The system administrator has no contact with the operators at the zone. Which of the following would be the FIRST step to take when troubleshooting this interrogator remotely?

A. Restart the interrogator.

B. Use original equipment manufacturer (OEM) software to connect to the interrogator.

C. Ping the interrogator.

D. Send maintenance to replace the interrogator.

Correct Answer: C

Question 8

An Electronic Product Code (EPC) Class 1 Gen 2 RFID system reads the EPC data from memory bank zero, but the 64-bit EPC code is always zero. Which of the following is MOST likely the cause of the problem?

A. The EPC code was never written to the tag.

B. The access password is zero.

C. The tag has been killed.

D. The EPC code is stored in Bank 1.

Correct Answer: D

Question 9

Interrogators placed at dock door portals are failing. When repairing the interrogators, the manufacturer's technician observes that the interrogators are showing signs of water intrusion. The BEST solution would be to:

A. move the dock door stands back from the doors 4 feet (1.2 meters) to decrease exposure.

B. place the affected interrogators in National Electrical Manufacturers Association (NEMA)
4 enclosures.

C. install dock shelters on all dock doors utilizing RFID interrogation zones.

D. fill all openings in the interrogator with water resistant silicone.

Correct Answer: B

Question 10

RFID labels that were being printed correctly are now being printed with half the image area across two labels and the tags cannot be validated. Which of the following should the technician check FIRST?

A. Printer speed

B. Print drivers

C. Communications protocol

D. Sensor settings

Correct Answer: D

Question 11

When tracking items in an outdoor environment with minimum interference, which of the following RFID systems will provide the longest read range?

A. Passive low frequency (LF)

B. Passive high frequency (HF)

C. Active RFID

D. Passive ultra high frequency (UHF)

Correct Answer: C

Question 12

In a high frequency (HF) passive system, the anticipated read range should be:

A. Between 16 and 32 feet (5 meters and 10 meters).

B. Greater than 32 feet (10 meters).

C. Less than 3.2 feet (one meter).

D. Between 3.2 and 16 feet (one and 5 meters).

Correct Answer: C

Question 13

When assisting with a site analysis for an active Real Time Locating System (RTLS), which of the following will have the LEAST affect upon the number of interrogators installed?

A. The size of the area to be covered.

B. The resolution required for locating items.

C. The frequency of the system selected.

D. The ampere-hour rating of the tag's battery.

Correct Answer: D

Question 14

In a clamp forklift application, tags may:

A. be easier to read.

B. be read at a higher rate.

C. be crushed.

D. last longer.

Correct Answer: C

Question 15

When installing cabling and wiring within a safety enclosure around an RFID interrogator, which of the following should be done?

A. Remove screws from unused terminals.

B. Place wire numbers on all wires.

C. Ensure all wiring sizes are the same.

D. Use cable restraints only on wires greater than 8 American wire gauge (AWG).

Correct Answer: B

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CompTIA RFID+ Certification (RF0-001) Free Practice Test