RFID+ Certification Exam v5.0 (RF0-001)

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Total 232 questions

A dock door portal must read multiple tags mounted on metal objects. Which of the following should be done to help reduce the reflective effects of the metal objects in the field?

  • A. Use a linear antenna on one side of the portal.
  • B. Use multiple antennas at angles to each other.
  • C. Increase the gain of the antennas.
  • D. Increase the power output of the interrogator.


Answer : B

A dock door portal must read multiple tags mounted on metal objects. Which of the following should be done to help reduce the reflective effects of the metal objects in the field?

  • A. Use a linear antenna on one side of the portal.
  • B. Use multiple antennas at angles to each other.
  • C. Increase the gain of the antennas.
  • D. Increase the power output of the interrogator.


Answer : B

High frequency (HF) output power is BEST measured as:

  • A. decibels per meter.
  • B. dBm.
  • C. Effective Radiated Power (ERP).
  • D. Effective Isotropic Radiated Power (EIRP).


Answer : B

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. Capacitive material in which to store power.
  • B. Inductive dipole antenna.
  • C. Inductive coil antenna.
  • D. Inductive coil antenna.


Answer : D

Under optimal conditions, active RFID tags operating at 303.8MHZ or 433.92MHz can be read at:

  • A. less than 6 inches (15 centimeters).
  • B. more than 10 miles (16 kilometers).
  • C. more than 322.6 feet (100 meters).
  • D. less than 9.7 feet (3 meters).


Answer : C

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

  • A. adding another antenna on the same side.
  • B. selecting an antenna whose gain is 2dB greater than the original antenna.
  • C. adding another antenna on the other side.
  • D. placing reflective material across from the transmitting antenna.


Answer : C

All of the following are true statements about passive RFID tags EXCEPT that they:

  • A. may transmit and receive on different channels.
  • B. permit multiple sessions in the same interrogation zone.
  • C. do not implement duty cycle control.
  • D. contain batteries.


Answer : D

Passive ultra high frequency (UHF) tags perform BEST when communicating by:

  • A. near-field coupling.
  • B. planar coupling.
  • C. Faraday coupling.
  • D. far-field coupling.


Answer : D

An RFID system is to be used in a conveyor belt operation where single boxes with RFID labels are to be read. Which of the following types of antennas would be MOST effective?

  • A. Isotropic
  • B. Circularly polarized
  • C. Horizontally polarized linear
  • D. Vertically polarized linear


Answer : B

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

Interrogation zones that are found to be interfering with an existing system can BEST be resolved by doing which of the following?

  • A. Shielding the zone with a reflective or absorptive material.
  • B. Replacing the existing components that are interfering.
  • C. Turning oft the RFID system.
  • D. Upgrading the RFID system to Electronic Product Code (EPC) Class 1 Gen 2 specifications.


Answer : A

Using a spectrum analyzer, it is determined that the source of interference in a passive ultra high frequency (UHF) system is the vehicle-mounted computers. The computers are operating in spread-spectrum 915 MHz mode. Which of the following would be the MOST efficient method of resolving this situation?

  • A. Replace the radio cards in the computer terminals with 802.11 radio cards and the computer terminals will be able to communicate over the existing access points.
  • B. Remove the computer terminals, replacing them with computers that operate in a different frequency range and update the wireless network to support this change.
  • C. Surround the computer terminals with a shield so the terminals cannot emit signals into the interrogation zones.
  • D. Replace the radio cards in the computer terminals with 802.11 radio cards and change the access points to support 802.11 operation as well.


Answer : D

Based on the diagram, at which of the following numbered locations should antennas be placed to read tags on six sides of an RF-opaque carton? (Select TWO).

  • A. 3, 5, 8, 9
  • B. 2, 4, 8, 9
  • C. 2, 3, 4, 5
  • D. 2, 3, 8, 9


Answer : A,B

Which of the following temperatures is the lower limit of operation for a passive ultra high frequency (UHF) tag to operate in a cold environment?

  • A. -40 C (-40 F)
  • B. 20 C (68 F)
  • C. -80 C (-112 F)
  • D. 0 C (32 F)


Answer : A

Based on the following diagram, if antennas are located at locations 2 and 4, at which of the following locations should a smart label applicator be placed?

  • A. 1
  • B. 9
  • C. 6
  • D. 7


Answer : A

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Total 232 questions