Page 1 of 117
BICSI DCDC-002 Data Center Design Consultant
Exam QUESTIONS AND VERIFIED ANSWERS LATEST
UPDATE
BICSI DCDC-002 Data Center Design Consultant Exam coverage in summarized point form, followed
by 250 MCQs with rationales in random order, based on the ANSI/BICSI 002
Standard (2019/2024), Essentials of Data Center Projects (EDCP) , the official exam duties outlined by
BICSI, and industry best practices .
EXAM COVERAGE (SUMMARIZED POINTS)
• Design Process: Project delivery methods, facility/technology design phases, documentation,
and third-party certifications.
• Site Selection: Natural environment risks, utility availability (power, water, fiber diversity),
regulations, financial incentives, and location logistics.
• Electrical Systems: Medium voltage distribution, UPS topologies (N, N+1, 2N), generators (N,
N+1, 2N), grounding, PDUs, and backup fuel systems.
• Mechanical Systems: Cooling architectures (CRAH/CRAC), chilled water vs. DX, air containment
(hot aisle/cold aisle), liquid cooling, economizers, and ASHRAE thermal guidelines.
• Tier Topologies (Uptime Institute): Class definitions (I, II, III, IV) vs. BICSI availability classes (0-
4).
• Ancillary Systems: Fire protection (pre-action, VESDA), physical security (layers of protection,
biometrics, CCTV), and Building Automation Systems (BAS).
• Information Technology (IT): Network fundamentals (OSI model), cabling media (copper/fiber),
SAN/NAS, Top-of-Rack (ToR) vs. End-of-Row (EoR) switching, and high availability.
• Commissioning (Cx): Phases (Levels 1-5), types, testing documentation, and Integrated System
Testing (IST).
• Operations & Maintenance (O&M): Equipment accessibility, monitoring (DCIM), and MOPs
(Method of Procedures).
• Risk Analysis: Threat assessments, BCP/DRP translation into design, cost-benefit analysis, and
countermeasures.
• Sustainability: PUE (Power Usage Effectiveness), WUE (Water Usage Effectiveness), LEED
certification, and free cooling.
• Cabling Infrastructure: ANSI/TIA-942 standards, cable bend radius, fill ratios, and pathway
clearances.
QUESTIONS 1–250
1. According to ANSI/BICSI 002-2024, which Tier/Class level is described as "Fault Tolerant" requiring 2N
or 2(N+1) architecture?
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a) Tier I
b) Tier II
c) Tier III
d) Tier IV
Rationale: Tier IV (Uptime Institute) or BICSI Class 4 requires multiple independent distribution paths
and concurrent maintainability, achieving 99.995% availability .
2. When evaluating site utility availability, the term "fiber diversity" refers to:
a) Using both single-mode and multimode fiber
b) Redundant fiber paths that are physically separated
c) Multiple providers sharing the same conduit
d) Wireless backup links only
Rationale: Fiber diversity specifically requires physically diverse paths to prevent a single cut (e.g.,
backhoe) from taking down both circuits .
3. Which commissioning level is characterized by "Design and Construction Review" but does not include
integrated testing?
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a) Level 1
b) Level 2
c) Level 3
d) Level 4
Rationale: BICSI 002 defines Level 2 commissioning as verifying the design and installation via
documentation review and factory testing, prior to full integrated systems testing (Level 4).
4. What is the minimum recommended hot aisle width for a non-raised floor data center according to
ANSI/BICSI 002 requirements?
a) 0.6 m (2 ft)
b) 0.9 m (3 ft)
c) 1.2 m (4 ft)
d) 1.5 m (5 ft)
Rationale: BICSI 002 recommends hot aisles be at least 1.2 m (4 ft) for non-raised floor configurations,
though the required minimum is 0.9 m (3 ft) .
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5. A data center is estimated to have 1,000 sq meters of white space. Using a general rule of thumb for
Tier III electrical distribution, what is the approximate UPS load capacity required?
a) 50 kW
b) 100-150 kW
c) 200-300 kW
d) 500-600 kW
Rationale: A common rough estimate for general IT load is 100-150 kW per 1,000 sq m, though high-
density designs vary significantly.
6. Which of the following statements is true regarding "concurrent maintainability"?
a) All equipment must be turned off for maintenance
b) Any component can be removed without disrupting IT load
c) It is only achievable with 2N UPS systems
d) It allows the facility to fail over to a generator within milliseconds
Rationale: Concurrent maintainability (Tier III/BICSI Class 3) means each component can be maintained
or replaced without shutting down the critical load, typically using N+1 architectures.
BICSI DCDC-002 Data Center Design Consultant
Exam QUESTIONS AND VERIFIED ANSWERS LATEST
UPDATE
BICSI DCDC-002 Data Center Design Consultant Exam coverage in summarized point form, followed
by 250 MCQs with rationales in random order, based on the ANSI/BICSI 002
Standard (2019/2024), Essentials of Data Center Projects (EDCP) , the official exam duties outlined by
BICSI, and industry best practices .
EXAM COVERAGE (SUMMARIZED POINTS)
• Design Process: Project delivery methods, facility/technology design phases, documentation,
and third-party certifications.
• Site Selection: Natural environment risks, utility availability (power, water, fiber diversity),
regulations, financial incentives, and location logistics.
• Electrical Systems: Medium voltage distribution, UPS topologies (N, N+1, 2N), generators (N,
N+1, 2N), grounding, PDUs, and backup fuel systems.
• Mechanical Systems: Cooling architectures (CRAH/CRAC), chilled water vs. DX, air containment
(hot aisle/cold aisle), liquid cooling, economizers, and ASHRAE thermal guidelines.
• Tier Topologies (Uptime Institute): Class definitions (I, II, III, IV) vs. BICSI availability classes (0-
4).
• Ancillary Systems: Fire protection (pre-action, VESDA), physical security (layers of protection,
biometrics, CCTV), and Building Automation Systems (BAS).
• Information Technology (IT): Network fundamentals (OSI model), cabling media (copper/fiber),
SAN/NAS, Top-of-Rack (ToR) vs. End-of-Row (EoR) switching, and high availability.
• Commissioning (Cx): Phases (Levels 1-5), types, testing documentation, and Integrated System
Testing (IST).
• Operations & Maintenance (O&M): Equipment accessibility, monitoring (DCIM), and MOPs
(Method of Procedures).
• Risk Analysis: Threat assessments, BCP/DRP translation into design, cost-benefit analysis, and
countermeasures.
• Sustainability: PUE (Power Usage Effectiveness), WUE (Water Usage Effectiveness), LEED
certification, and free cooling.
• Cabling Infrastructure: ANSI/TIA-942 standards, cable bend radius, fill ratios, and pathway
clearances.
QUESTIONS 1–250
1. According to ANSI/BICSI 002-2024, which Tier/Class level is described as "Fault Tolerant" requiring 2N
or 2(N+1) architecture?
, Page 2 of 117
a) Tier I
b) Tier II
c) Tier III
d) Tier IV
Rationale: Tier IV (Uptime Institute) or BICSI Class 4 requires multiple independent distribution paths
and concurrent maintainability, achieving 99.995% availability .
2. When evaluating site utility availability, the term "fiber diversity" refers to:
a) Using both single-mode and multimode fiber
b) Redundant fiber paths that are physically separated
c) Multiple providers sharing the same conduit
d) Wireless backup links only
Rationale: Fiber diversity specifically requires physically diverse paths to prevent a single cut (e.g.,
backhoe) from taking down both circuits .
3. Which commissioning level is characterized by "Design and Construction Review" but does not include
integrated testing?
, Page 3 of 117
a) Level 1
b) Level 2
c) Level 3
d) Level 4
Rationale: BICSI 002 defines Level 2 commissioning as verifying the design and installation via
documentation review and factory testing, prior to full integrated systems testing (Level 4).
4. What is the minimum recommended hot aisle width for a non-raised floor data center according to
ANSI/BICSI 002 requirements?
a) 0.6 m (2 ft)
b) 0.9 m (3 ft)
c) 1.2 m (4 ft)
d) 1.5 m (5 ft)
Rationale: BICSI 002 recommends hot aisles be at least 1.2 m (4 ft) for non-raised floor configurations,
though the required minimum is 0.9 m (3 ft) .
, Page 4 of 117
5. A data center is estimated to have 1,000 sq meters of white space. Using a general rule of thumb for
Tier III electrical distribution, what is the approximate UPS load capacity required?
a) 50 kW
b) 100-150 kW
c) 200-300 kW
d) 500-600 kW
Rationale: A common rough estimate for general IT load is 100-150 kW per 1,000 sq m, though high-
density designs vary significantly.
6. Which of the following statements is true regarding "concurrent maintainability"?
a) All equipment must be turned off for maintenance
b) Any component can be removed without disrupting IT load
c) It is only achievable with 2N UPS systems
d) It allows the facility to fail over to a generator within milliseconds
Rationale: Concurrent maintainability (Tier III/BICSI Class 3) means each component can be maintained
or replaced without shutting down the critical load, typically using N+1 architectures.
