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Free RCDD-002 Exam Braindumps (page: 5)

Page 5 of 91
PDF with 361 Questions

Assume that the optical power transmitted by a 62.5/125 multimode fiber is distributed uniformly across its core. If this fiber is perfectly coupled (i.e., the two fibers are aligned and abutted) to a 50/125 fiber, what is the percent of power that is lost?

  1. 0 percent
  2. 36 percent
  3. 50 percent
  4. 80 percent
  5. 100 percent

Answer(s): B



Which electrical characteristic is displayed with the correct preferred value?

  1. Dielectric constant ­ high value
  2. Dielectric strength ­ high value
  3. Dissipation factor ­ low value
  4. Insulation resistance - high value

Answer(s): A



A reasonable approximation for the signal speed in 100 ohm balanced twisted pair cable is __________, where c is the velocity of light in free space.

  1. 0.2 c
  2. 0.4 c
  3. 0.6 c
  4. 08 c
  5. 0.9 c

Answer(s): C



The signal at the input to a balanced twisted pair cable is 10 mW. The cable is 1000 feet long and has an attenuation of 1 dB per 100 feet. This cable is connected to the input of a receiver. The noise level at the input to the receiver is 1 microwatt. What is the signal-to-noise ratio (SNR) (dB) at the receiver input?

  1. 10 dB
  2. 30 dB
  3. 40 dB
  4. 60 dB
  5. 100 dB

Answer(s): B






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