100+ Free CDCP Practice Questions

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Question 1

Score: 0/0

Which Uptime Institute Tier classification provides 'Concurrently Maintainable' infrastructure with all components capable of being removed for planned maintenance without affecting IT operation?

Tier I

Tier II

Tier III

Tier IV

to track

2026 Statistics

Key Facts: CDCP Exam

Exam Questions

EXIN Preparation Guide

60 min

Exam Duration

EXIN Preparation Guide

65%

Passing Score (26/40)

EXIN Preparation Guide

3 years

Certification Validity

EPI Recertification Program

85% / 15%

Facilities vs Operations Weighting

EXIN Preparation Guide

60+

Countries Where EPI Delivers Training

EPI

The CDCP exam has 40 multiple-choice questions in 60 minutes with a 65% passing score (26 of 40). Coverage spans Facilities of the Data Centre (~85%) and Operations of the Data Centre (~15%), including Uptime Tier classification, TIA-942 Rated facilities, EN 50600 / ISO 22237, UPS and generator topologies, ASHRAE TC 9.9 thermal envelopes, hot/cold aisle and containment, free cooling, NFPA fire suppression, layered physical security, structured cabling, DCIM/BMS/EPMS, PUE/WUE/CUE metrics, and BCDR fundamentals.

Sample CDCP Practice Questions

Try these sample questions to test your CDCP exam readiness. 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 provides 'Concurrently Maintainable' infrastructure with all components capable of being removed for planned maintenance without affecting IT operation?

A.Tier I

B.Tier II

C.Tier III

D.Tier IV

Explanation: Uptime Institute Tier III is defined as Concurrently Maintainable, meaning every capacity component and distribution path can be taken out of service for planned maintenance or replacement without disrupting the IT environment. Tier III requires multiple independent distribution paths but only one needs to be active at any time. Annual site availability target is 99.982% with a maximum of 1.6 hours downtime.

2What is the formula for Power Usage Effectiveness (PUE)?

A.IT equipment energy / total facility energy

B.Total facility energy / IT equipment energy

C.Cooling energy / IT equipment energy

D.(Total facility energy - IT energy) / IT equipment energy

Explanation: PUE was defined by The Green Grid as Total Facility Energy divided by IT Equipment Energy. A perfect PUE of 1.0 means every watt entering the facility reaches IT equipment. Modern hyperscale data centres target PUE below 1.5, with leading designs achieving 1.10-1.20. PUE is now codified in ISO/IEC 30134-2.

3Which redundancy configuration uses two completely independent systems each capable of carrying the full IT load by itself?

A.N

B.N+1

C.2N

D.N+2

Explanation: A 2N (or system-plus-system) topology provides two fully independent and identical systems, where each can carry 100% of the load alone. This is required for Uptime Tier IV fault tolerance. 2N eliminates single points of failure across the entire distribution path, not just at the component level.

4According to ANSI/TIA-942, which Rated Facility level corresponds most closely to a 'Fault Tolerant' data centre with concurrent maintainability and fault tolerance?

A.Rated-1

B.Rated-2

C.Rated-3

D.Rated-4

Explanation: ANSI/TIA-942 defines four Rated Facility levels (Rated-1 Basic through Rated-4 Fault Tolerant). Rated-4 requires fully redundant systems, concurrent maintainability, and fault tolerance similar to Uptime Tier IV. The 2024 revision continues to use Rated-1 to Rated-4 nomenclature to avoid trademark conflict with Uptime's Tier system.

5Which European standard defines requirements specifically for the design and operation of data centres, including a Granularity (G), Availability (A), Energy efficiency (E), and Protection (P) classification?

A.EN 50173

B.EN 50600

C.EN 50310

D.EN 50346

Explanation: EN 50600 is the European multi-part standard for data centre facilities and infrastructures. It introduces classification across Availability (Class 1-4), Physical Security (1-4), and Energy Efficiency Enablement, alongside KPIs for power, cooling, and operations. ISO/IEC 22237 is its global counterpart.

6Which gaseous fire suppression agent is a HFC blend (heptafluoropropane) commonly used in data centres and known commercially as FM-200?

A.HFC-227ea

B.FK-5-1-12

C.IG-541

D.CO2

Explanation: FM-200 is the trade name for HFC-227ea (heptafluoropropane), a clean agent that suppresses fire by absorbing heat. It leaves no residue and discharges in 10 seconds, making it suitable for occupied IT spaces. However, it has a high Global Warming Potential (~3220) and is being phased down under the Kigali Amendment.

7What is the primary functional difference between a CRAC and a CRAH unit?

A.A CRAC uses water; a CRAH uses refrigerant.

B.A CRAC uses refrigerant (DX coil); a CRAH uses chilled water.

C.Both use refrigerant; CRAH is larger.

D.CRAH is for raised floor only; CRAC is for slab only.

Explanation: A CRAC (Computer Room Air Conditioner) contains a direct-expansion (DX) refrigeration circuit with compressor and evaporator coil. A CRAH (Computer Room Air Handler) has no compressor — it uses a chilled water coil supplied by a central chiller plant. CRAH units typically deliver higher efficiency in large facilities served by a chiller plant.

8In ASHRAE TC 9.9 thermal guidelines, which class has the WIDEST allowable temperature envelope (5-45 °C) intended for compatible IT equipment?

A.Class A1

B.Class A2

C.Class A3

D.Class A4

Explanation: ASHRAE TC 9.9 defines four data centre classes A1-A4 with progressively wider allowable envelopes. Class A4 has the widest allowable inlet temperature range of 5-45 °C and humidity 8-90% RH, intended for facilities that aggressively use economizer cooling. The recommended envelope (18-27 °C) is the same across all classes.

9Which UPS topology provides the highest level of power conditioning by always running the load through the rectifier-inverter path, regardless of input quality?

A.Offline (standby) UPS

B.Line-interactive UPS

C.Double-conversion (online) UPS

D.Ferroresonant UPS

Explanation: Double-conversion online UPS continuously converts incoming AC to DC and back to AC, completely isolating the load from utility disturbances. It provides zero transfer time and the cleanest output, making it standard for Tier III/IV data centres. Efficiency is typically 94-97% in normal mode and higher in eco-mode.

10What is the primary purpose of an Automatic Transfer Switch (ATS) in a data centre?

A.To convert DC battery power to AC for the load

B.To automatically switch between two AC power sources (typically utility and generator)

C.To regulate harmonic distortion in the power system

D.To synchronize multiple UPS modules in parallel

Explanation: An ATS automatically transfers a load between two independent AC power sources — typically utility and standby generator. When the primary source fails or falls out of tolerance, the ATS senses the loss and transfers within seconds (open-transition) or tens of milliseconds (closed-transition or static transfer switch / STS).

About the CDCP Exam

The EXIN Certified Data Centre Professional (CDCP) validates foundational knowledge of data centre facility infrastructure: standards (TIA-942, EN 50600, Uptime Tiers), site selection and building, raised floor, power distribution and UPS topologies, cooling systems and ASHRAE guidelines, fire protection, physical security, structured cabling, monitoring, and operations and maintenance.

Questions

40 scored questions

Time Limit

60 minutes

Passing Score

65% (26 of 40)

Exam Fee

Bundled with EPI training (typical course $1,800-$2,500 USD) (EXIN (accreditation) / EPI (courseware))

CDCP Exam Content Outline

20%

Standards & Mission Critical Site

Uptime Institute Tiers I-IV, ANSI/TIA-942 Rated-1 to Rated-4 facilities, EN 50600 series and ISO/IEC 22237, EPI DCOS, mission critical site definitions, and availability targets

10%

Building, Raised Floor & Auxiliary Systems

Site selection criteria, structural loading, raised access flooring, suspended ceilings, lighting and EPS, EMF shielding, water supply, BMS, EPMS, DCIM, and water leak detection

20%

Power Infrastructure

Power distribution from utility to rack, UPS topologies (offline, line-interactive, double-conversion), generators, ATS/STS, redundancy (N, N+1, 2N, 2(N+1)), grounding/SRG, harmonics, SPDs, and EPO

20%

Cooling Infrastructure

ASHRAE TC 9.9 envelopes, CRAC vs CRAH, hot/cold aisle, containment, free cooling (air-side and water-side economizer), evaporative/adiabatic cooling, in-row, RDHx, immersion, and direct-to-chip

15%

Fire Protection & Physical Security

NFPA 75/76, smoke detection, VESDA, gaseous suppression (FM-200, Novec 1230, IG-541), water mist, layered physical security, mantraps, biometrics, CCTV, and EN 50131 IDS

15%

Cabling, Operations & Efficiency

TIA-942 topology (MDA/HDA/ZDA/EDA), Cat 6A, OM3/OM4/OM5, single-mode, MTP/MPO, SOP/MOP/EOP, AOR, commissioning levels, preventive vs predictive maintenance, PUE/WUE/CUE, ISO 30134, BCDR with RTO/RPO

How to Pass the CDCP Exam

What You Need to Know

Passing score: 65% (26 of 40)
Exam length: 40 questions
Time limit: 60 minutes
Exam fee: Bundled with EPI training (typical course $1,800-$2,500 USD)

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

CDCP Study Tips from Top Performers

1Memorize the four Uptime Tiers with their availability targets (99.671%, 99.741%, 99.982%, 99.995%) and what makes Tier III concurrently maintainable

2Know the difference between ANSI/TIA-942 Rated-1 to Rated-4 and how they map to (but are not identical to) Uptime Tiers

3Master redundancy schemes: N, N+1, 2N, and 2(N+1) — and which Tier each enables

4Learn UPS topologies cold: offline vs line-interactive vs double-conversion, plus when STS vs ATS is appropriate

5Memorize ASHRAE TC 9.9 recommended envelope (18-27 °C) and the allowable envelopes for classes A1-A4

6Know the major clean agents (FM-200/HFC-227ea, Novec 1230/FK-5-1-12, IG-541/Inergen, IG-55) and their environmental profiles

7Practice the PUE formula and CUE/WUE definitions — calculation questions appear on every exam

8Understand SOP vs MOP vs EOP, AOR, and the commissioning levels (Cx 1-5) including pull-the-plug IST

Frequently Asked Questions

What is the CDCP exam format?

The CDCP exam consists of 40 closed-book multiple-choice questions to be completed in 60 minutes. The passing score is 27 out of 40 (65%). Questions cover the full data centre facility infrastructure plus operational considerations, weighted approximately 85% facilities and 15% operations.

Who accredits the CDCP and who delivers the training?

CDCP is globally accredited by EXIN, an independent exam and certification institute. The official courseware and instructor-led training are delivered by EPI (Enterprise Products Integration), with delivery through EPI partner training centres in over 60 countries.

Is the CDCP exam included in the training fee?

Yes — the CDCP exam voucher is typically bundled with EPI's two-day instructor-led, virtual, or on-demand training. Standalone exam vouchers can be purchased through EXIN, but the integrated package is the standard route. Total package pricing usually falls in the $1,800-$2,500 USD range.

What are the prerequisites for CDCP?

There are no formal prerequisites for CDCP. EPI recommends 1-2 years of experience in a data centre or facilities environment, but the course is also suitable for newcomers. CDCP is the first credential in the EPI Design and Build training track and feeds into CDCS (Specialist) and CDCE (Expert).

How long is the CDCP certification valid?

The CDCP certificate is valid for 3 years. Recertification can be achieved through the EPI Recertification Programme, which includes options like attending updated training, completing CPE-style activities, or progressing to higher-level credentials such as CDCS or CDCE.