PracticeVideosBlogFlashcards
All Practice Exams

Free Practice Questions for BICSI DCDC

Exam-style questions and explanations by OpenExamPrep.

✓ No registration✓ No credit card
100+ Questions
100% Free

Loading practice questions...

Exam Review

Key Facts: BICSI DCDC Exam

100

Exam Questions

BICSI

Angoff

Passing Score

BICSI

2 hrs

Exam Duration

BICSI

$510-$725

Exam Fee

BICSI

Not published

Pass Rate

BICSI

3-year cycle

Recertification (36 CECs)

BICSI

The BICSI DCDC exam (DCDC-004) has 100 questions in 2 hours at Pearson test centers, with a passing standard set by an Angoff standard-setting study. Areas: Concept Planning & Analysis (30%); Systems: Architectural, Mechanical, Electrical (20%); Systems: IT, Ancillary, Communications (20%); Operations & Maintenance Assessment (10%); Security Assessment (10%); Construction Administration & Commissioning (10%). References: ANSI/BICSI 002-2024 and Essentials of Data Center Projects, 2nd edition.

Sample BICSI DCDC Practice Questions

Try these sample questions to review concepts for the BICSI DCDC exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which Uptime Institute tier classification requires 2N redundancy for all power and cooling distribution paths?
A.Tier III
B.Tier II
C.Tier IV
D.Tier I
Explanation: Tier IV (Fault Tolerant) requires 2N redundancy for all power and cooling distribution paths, meaning the system can sustain any single fault without impacting IT operations. This is the highest level of availability in the Uptime Institute classification system. Exam Tip: Remember that Tier IV is the only tier that requires full 2N redundancy across all infrastructure systems.
2What does PUE stand for in the context of data center energy efficiency?
A.Performance Under Evaluation
B.Primary Utility Energy
C.Power Usage Effectiveness
D.Power Utilization Efficiency
Explanation: PUE stands for Power Usage Effectiveness, which is the ratio of total facility energy to IT equipment energy. A PUE of 1.0 would indicate 100% efficiency with no overhead. Exam Tip: PUE is the single most widely used metric for data center energy efficiency and is defined by The Green Grid.
3In a hot aisle/cold aisle containment strategy, which aisle is typically enclosed?
A.Only the hot aisle should be enclosed
B.Both aisles must always be enclosed simultaneously
C.Either the hot or cold aisle can be enclosed depending on design goals
D.Only the cold aisle should be enclosed
Explanation: Either the hot aisle or cold aisle can be enclosed depending on the design objectives. Hot aisle containment captures exhaust air and returns it directly to cooling units, while cold aisle containment keeps conditioned air from mixing with warm exhaust. Exam Tip: Hot aisle containment is generally preferred because it allows the rest of the room to remain at comfortable temperatures for personnel.
4What is the primary standard that BICSI publishes for data center design?
A.BICSI-009
B.NFPA 75
C.TIA-942
D.ASHRAE TC 9.9
Explanation: BICSI-009 (ANSI/BICSI-009) is BICSI's own standard for data center design, covering site selection, architectural, electrical, mechanical, telecommunications, and security design. TIA-942 is a separate telecommunications infrastructure standard. Exam Tip: Know the distinction between BICSI-009 and TIA-942 — both are important but BICSI-009 is the primary reference for the DCDC exam.
5What is the minimum expected availability percentage for an Uptime Institute Tier III data center?
A.99.741%
B.99.982%
C.99.995%
D.99.671%
Explanation: Tier III (Concurrently Maintainable) provides a minimum expected availability of 99.982%, which equates to approximately 1.6 hours of annual downtime. Tier IV is 99.995% and Tier II is 99.741%. Exam Tip: Memorize the tier availability percentages — they are frequently tested and help distinguish between tiers.
6Which type of UPS topology provides the highest level of power protection by continuously conditioning power through the inverter?
A.Line-interactive UPS
B.Delta-conversion UPS
C.Double-conversion online UPS
D.Offline/standby UPS
Explanation: A double-conversion online UPS continuously converts incoming AC power to DC and back to AC, providing complete isolation from utility power anomalies. The IT load always runs on conditioned inverter power regardless of utility conditions. Exam Tip: Double-conversion online UPS is the standard choice for data centers because it eliminates transfer time and provides the cleanest power output.
7What is the recommended maximum temperature at the inlet of IT equipment according to ASHRAE TC 9.9 A1 class guidelines?
A.32°C (89.6°F)
B.27°C (80.6°F)
C.20°C (68°F)
D.35°C (95°F)
Explanation: ASHRAE TC 9.9 recommends an A1 class maximum inlet temperature of 27°C (80.6°F) for IT equipment. The recommended range is 18-27°C. Operating above these limits can reduce equipment reliability and lifespan. Exam Tip: The ASHRAE recommended envelope is 18-27°C — know both the low and high ends of this range.
8Which fire suppression agent is commonly used in data centers because it is safe for occupied spaces and does not leave residue?
A.FM-200 (HFC-227ea)
B.Dry chemical powder
C.Halon 1301
D.Carbon dioxide (CO2)
Explanation: FM-200 (HFC-227ea) is a clean agent commonly used in data centers because it suppresses fire without leaving residue that could damage equipment and is safe for use in occupied spaces at design concentrations. Halon 1301 is banned under the Montreal Protocol. Exam Tip: CO2 is effective but dangerous in occupied spaces — FM-200 and Novec 1230 are the preferred clean agents for data centers.
9What does a PDU (Power Distribution Unit) do in a data center?
A.Generates backup power during outages
B.Converts DC power to AC power for IT loads
C.Distributes electrical power to individual racks and equipment
D.Monitors and controls cooling system operations
Explanation: A PDU distributes electrical power from the main power source to individual racks and equipment within the data center. PDUs can range from basic power strips to intelligent units with monitoring, switching, and environmental sensing capabilities. Exam Tip: Understand the difference between floor-standing PDUs (which step down voltage) and rack-mounted PDUs (which distribute power within racks).
10Which cabling standard is specifically designed for telecommunications infrastructure in data centers?
A.TIA-606
B.TIA-607
C.TIA-568
D.TIA-942
Explanation: TIA-942 is the Telecommunications Infrastructure Standard for Data Centers, providing requirements and guidelines for data center telecommunications infrastructure. TIA-568 covers general commercial building cabling, TIA-606 covers administration, and TIA-607 covers grounding. Exam Tip: Know the purpose of each TIA standard — TIA-942 is data center specific while TIA-568 covers commercial buildings in general.

About the BICSI DCDC Exam

The BICSI DCDC certification validates expertise in data center design and infrastructure planning. The exam covers concept planning, architectural and space design, mechanical and electrical systems, IT infrastructure, communications connectivity, security, and construction administration. Certification demonstrates competency in designing mission-critical data center facilities that meet industry standards.

Exam sponsor: BICSI / Pearson Professional Assessments (Pearson VUE). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Questions

100 questions

Time Limit

2 hours

Passing Score

Standard-setting (Angoff method)

Exam / Certification Fees

$510 member / $725 nonmember

Exam sponsor website

Reported exam pass rate: Not published. BICSI does not publish a DCDC pass rate Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

30%

Concept Planning and Analysis

Needs assessment, data center model suitability, site evaluation and selection, feasibility and budgeting (DCDC v4 blueprint)

20%

Systems: Architectural and Space Design, Mechanical, Electrical

Architectural and space design 10%, mechanical systems 5%, electrical systems 5%

20%

Systems: Information Technology, Ancillary Systems, Communications Connectivity

IT (network, storage, servers) 7%, ancillary systems (fire protection, physical security, BAS) 6%, communications connectivity 7%

10%

Data Center Operations and Maintenance Assessment

Assess operations and maintenance practices and report findings

10%

Security Assessment

Threat assessment, security audits, disaster-recovery requirements translated into design recommendations

10%

Construction Administration and Commissioning

Construction administration 5% (bid, construction and close-out coordination), commissioning 5%

Preparing for the BICSI DCDC Exam

What You Need to Know

  • Passing score: Standard-setting (Angoff method)
  • Exam length: 100 questions
  • Time limit: 2 hours
  • Exam / certification fees: $510 member / $725 nonmember Official sources

Using Our Practice Resources

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

BICSI DCDC: Suggested Study Strategy

1Master ANSI/BICSI 002-2024 — it is a primary reference for the exam
2Focus on Concept Planning & Analysis (30% of the exam), including site surveys, utilities, financial analysis, and feasibility reports
3Know the ANSI/BICSI 002 Availability Classes (F0 to F4) and the four-step method for selecting a class
4Understand power distribution chains: utility to UPS to PDU to rack-level power
5Study cooling methods: CRAC, CRAH, in-row cooling, hot/cold aisle containment

Frequently Asked Questions

What is the BICSI DCDC exam?

The BICSI Data Center Design Consultant (DCDC) exam, form DCDC-004, has 100 questions in 2 hours at Pearson test centers. It covers six areas: concept planning and analysis (30%), architectural, mechanical, and electrical systems (20%), IT, ancillary, and communications systems (20%), operations and maintenance assessment (10%), security assessment (10%), and construction administration and commissioning (10%). The passing standard is set by an Angoff standard-setting study.

What are the BICSI DCDC eligibility requirements?

Applicants qualify under one of three options: hold a current RCDD; have two years of verifiable full-time-equivalent data center design, construction, or operations experience plus a current TECH, RTPM, or OSP certification (or a degree in architecture, engineering, or construction management); or have three years of such experience within the past seven years. BICSI must approve the application before you schedule with Pearson.

How hard is the BICSI DCDC exam?

The DCDC is broad: it spans site selection, architecture, mechanical and electrical systems, IT and cabling, security, operations, and commissioning, and it includes two-correct-answer, drag-and-drop, and hot-spot items. BICSI does not publish a pass rate. BICSI suggests 125 or more hours of independent study using ANSI/BICSI 002-2024 and its related courses.

What is ANSI/BICSI 002?

ANSI/BICSI 002-2024 is the Data Center Design and Implementation Best Practices standard and one of the two reference publications for the DCDC exam. It covers site selection, space planning, power, cooling, cabling, security, and operations, and it defines Availability Classes (for example, F0 to F4 for facility systems) rather than tiers.

How often must I renew DCDC certification?

DCDC certification runs for the rest of the calendar year in which you pass plus three years and expires on December 31. To recertify, earn 36 continuing education credits (CECs), including at least one BICSI Ethics Course, in each three-year cycle. Certification is suspended 90 days after the expiration date if requirements are not met.

What question types are on the DCDC exam?

Besides standard multiple-choice questions, the DCDC exam contains enhanced items: multiple-choice questions with two correct answers, drag-and-drop items, and hot-spot identification. These test whether you can apply BICSI 002 concepts to drawings, sequences, and design decisions.

What is the difference between DCDC and RCDD certifications?

The DCDC covers multidisciplinary data center design and coordination, including site selection, power, cooling, security, operations, and commissioning. The RCDD is BICSI's credential for designing ICT distribution systems such as structured cabling and pathways. Holding a current RCDD is one of the eligibility options for the DCDC exam.