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BICSI RCDD-001 Exam Questions
BICSI Registered Communications Distribution Designer (Page 4 )

Updated On: 24-Feb-2026
Page 4 of 73
PDF with 358 Questions

Time division multiplexing (TDM) systems are designed to transport ________ between end point systems.

  1. Only analog signals
  2. Only digital signals
  3. A mix of both analog and digital signals
  4. Both analog and digital signals, but only one type at a time

Answer(s): B



The public telephone system is an example of a __________ system.

  1. Simplex
  2. Half-duplex
  3. Full-duplex
  4. Purely analog
  5. Purely digital

Answer(s): C



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



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



You must place a cable between 2 equipment locations with separate grounds having a potential difference between them of 2.1 V rms.
Which one of the following cables should NOT be used?

  1. Multimode
  2. Singlemode
  3. UTP
  4. STP

Answer(s): D






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