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RF0-001 Latest Exam (Sep 2017)

[Free] 2017(Sep) EnsurePass Pass4sure CompTIA RF0-001 Dumps with VCE and PDF 111-120

September 19, 2017

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2017 Sep CompTIA Official New Released RF0-001
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RFID Certification Exam

Question No: 111 – (Topic 2)

The technician is preparing to place the light break sensor for a dock door interrogation zone. Based on the following diagram, in which of the following numbered locations should the light break sensors be placed? (Select TWO).

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  1. 4

  2. 3

  3. 5

  4. 6

Answer: A,B

Question No: 112 – (Topic 2)

The reflection of RF energy from a floor or nearby reflective surfaces can cause a passive ultra high frequency (UHF) RFID system to miss tags because of:

  1. constructive interference.

  2. deconstructive interference.

  3. changes in the air interface#39;s modulation depth.

  4. interrogator antenna diversity.

Answer: B

Question No: 113 – (Topic 2)

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?

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

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

  3. The antennas were of different polarization.

  4. The antenna#39;s gain was too high causing the interrogator to overheat.

Answer: A

Question No: 114 – (Topic 2)

Interrogators placed at dock door portals are failing. When repairing the interrogators, the manufacturer#39;s technician observes that the interrogators are showing signs of water intrusion. The BEST solution would be to:

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

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

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

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

Answer: D

Question No: 115 – (Topic 2)

A warehouse dealing with quantities of RF absorbing material has a portal using a single antenna with reflective panels on all sides. The totes used to transport the material have tags mounted to one end and are run through the portal in random orientations. Not all tags are being read. Which of the following would be the BEST way to correct this problem?

  1. Add antennas on the other side of the portal.

  2. Increase the radiated power.

  3. Change the type of tag used.

  4. Reduce the amount of material in the tote.

Answer: A

Question No: 116 – (Topic 2)

High frequency (HF) RFID systems are thought to create interference with:

  1. cellular telephone and wireless personal computer (PC) cards.

  2. oceanographic exploration and submarines.

  3. radio astronomy and amateur radios.

  4. liquid crystal display (LCD) projectors and plasma displays.

Answer: C

Question No: 117 – (Topic 2)

The higher frequency ranges of RFID [e.g. ultra high frequency (UHF), microwave] offer which of the following as advantages over the lower frequencies? (Select TWO).

  1. There are fewer regulatory issues.

  2. There is greater range.

  3. They work well around water or body tissue.

  4. They have a higher data rate.

Answer: B,D

Question No: 118 – (Topic 2)

A passive ultra high frequency (UHF) RFID system has been installed for use outdoors in a winter climate. Although the system has been designed and implemented for the region, the user should be told that: (Select TWO).

  1. low temperatures can crack antenna housings.

  2. there are temperatures that are beyond interrogator specifications.

  3. there are temperatures that are beyond tag specifications.

  4. ice and/or snow on tags can cause inaccurate readings.

Answer: C,D

Question No: 119 – (Topic 2)

Ultra high frequency (UHF) output power is measured as:

  1. Effective Isotropic Radiated Power (EIRP).

  2. decibels.

  3. decibels per meter.

  4. Effective Radiated Power (ERP).

Answer: A

Question No: 120 – (Topic 2)

Prior to installation of RF equipment, which of the following should be evaluated as potential sources of interference?

  1. Manual dock doors

  2. Metal racking

  3. Pallet jacks

  4. Public address system/intercom

Answer: D

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