BICSI DCDC-002 Data Center Design Consultant Exam
2026/2027 QUESTIONS AND VERIFIED ANSWERS
LATEST UPDATE/JUST RELEASED!!
Factors that affect availability - ANSWER-Operational
Requirements, Operational Availability, Impact of
Downtime, All of the above
Minimum distance from the bottom of the access floor to
the top of the cable tray - ANSWER-2 inches.
Larger data centers and H DAs - ANSWER-Require more
H DAs to ensure maximum horizontal cable lengths are
not exceeded and to avoid cable congestion.
,Recommended level of redundancy for a critical power
system in a Tier III data center - ANSWER-N+1.
Highest allowable elevation for a data center site -
ANSWER-10,000 ft.
Minimum distance between a data center's backup
generator and the main building - ANSWER-30 feet.
Clearance required between AC units - ANSWER-
Minimum of 2 ft but recommended 6 ft.
H DAs - ANSWER-They avoid cable congestion.
,Typical air delivery temperature from a CRAC unit -
ANSWER-13-16 degrees Celsius.
Recommended floor loading capacity for a data center -
ANSWER-Defined in specific ft.
ANSI/TIA-942 typical range of pressure differential
regarding positive pressure for data center - ANSWER-
More than -0.005 in wc (< -1.24 Pa), but less than or equal
to +0.05 in wc (+12.4 Pa).
Dead loads of a structure - ANSWER-Static loads due to
force of gravity on fixed building elements.
, Minimum slab floor to ceiling height recommended -
ANSWER-15 feet minimum.
Where is temperature typically measured in a data center
HVAC system? - ANSWER-At the CRAC unit inlet.
Recommendation regarding row length - ANSWER-Do not
exceed 20 racks in length and dead-end rows not to
exceed ten racks long.
ASHRAE TC 9.9 recommended range for static pressure
in a data center - ANSWER-0.01-0.05 inches water gauge.
Minimum aisle width - ANSWER-3 feet.
2026/2027 QUESTIONS AND VERIFIED ANSWERS
LATEST UPDATE/JUST RELEASED!!
Factors that affect availability - ANSWER-Operational
Requirements, Operational Availability, Impact of
Downtime, All of the above
Minimum distance from the bottom of the access floor to
the top of the cable tray - ANSWER-2 inches.
Larger data centers and H DAs - ANSWER-Require more
H DAs to ensure maximum horizontal cable lengths are
not exceeded and to avoid cable congestion.
,Recommended level of redundancy for a critical power
system in a Tier III data center - ANSWER-N+1.
Highest allowable elevation for a data center site -
ANSWER-10,000 ft.
Minimum distance between a data center's backup
generator and the main building - ANSWER-30 feet.
Clearance required between AC units - ANSWER-
Minimum of 2 ft but recommended 6 ft.
H DAs - ANSWER-They avoid cable congestion.
,Typical air delivery temperature from a CRAC unit -
ANSWER-13-16 degrees Celsius.
Recommended floor loading capacity for a data center -
ANSWER-Defined in specific ft.
ANSI/TIA-942 typical range of pressure differential
regarding positive pressure for data center - ANSWER-
More than -0.005 in wc (< -1.24 Pa), but less than or equal
to +0.05 in wc (+12.4 Pa).
Dead loads of a structure - ANSWER-Static loads due to
force of gravity on fixed building elements.
, Minimum slab floor to ceiling height recommended -
ANSWER-15 feet minimum.
Where is temperature typically measured in a data center
HVAC system? - ANSWER-At the CRAC unit inlet.
Recommendation regarding row length - ANSWER-Do not
exceed 20 racks in length and dead-end rows not to
exceed ten racks long.
ASHRAE TC 9.9 recommended range for static pressure
in a data center - ANSWER-0.01-0.05 inches water gauge.
Minimum aisle width - ANSWER-3 feet.
