BICSI RCDD-002 Exam
BICSI Registered Communications Distribution Designer - RCDD (Page 9 )

Updated On: 9-Feb-2026

Within a data center, if you have a system which includes one extra unit, in addition to the minimum required to satisfy the base need, and where the failure of this unit will NOT disrupt operations, what level of redundancy would this represent?

  1. N
  2. N+1
  3. N+2
  4. 2N
  5. 2(N+1)

Answer(s): B



What does ANSI/TIA 942 recommend as the MINIMUM height for overhead cable tray above finished floor within a data center?

  1. 2.14 m (7 ft)
  2. 2.44 m (8 ft)
  3. 2.75 m (9 ft)
  4. 3.05 m (10 ft)
  5. 3.36 m (11 ft)

Answer(s): C



What type of redundancy provides two complete units, modules, paths or systems for every one required for a base system.

  1. N
  2. N+1
  3. N+2
  4. 2N
  5. 2(N+1)

Answer(s): D



If you have a 30 cm (12 in) wide data tray, what does ANSI/TIA 569-B recommend be the maximum pathway fill cross sectional area assuming a MAXIMUM pathway depth of 15 cm (6 in)?

  1. 112.5 sq cm (18 sq in)
  2. 150 sq cm (24 sq in)
  3. 225 sq cm (36 sq in)
  4. 300 sq cm (48 sq in)
  5. 450 sq cm (72 sq in)

Answer(s): C



Within a data center, how many concentric layers are considered necessary to provide effective security?

  1. One
  2. Two
  3. Three
  4. Four
  5. Five

Answer(s): D






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