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Free EPI CDCS sample quiz

Try ten questions from the validated CDCS practice bank. Every option, correct answer, and explanation is available on this page without signing up.

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10 questions

Sample questions and explanations

  1. Question 1 · Module 1: Data Centre Design/Life Cycle Overview

    What is the correct order of the main phases in the data centre life cycle?

    1. A.Initiation and strategy, planning and design, build and implementation, operation, and evaluation with renewal or decommissioning
    2. B.Design, build, operate, and then define the business strategy
    3. C.Operation, commissioning, procurement, and concept design only
    4. D.Procurement, installation, and disposal, with no operational phase

    Correct answer: A — Initiation and strategy, planning and design, build and implementation, operation, and evaluation with renewal or decommissioning

    Explanation: The life cycle runs from strategy through design, build and operation to evaluation, renewal or decommissioning, so operation is planned for from the start rather than added at the end.

  2. Question 2 · Module 1: Data Centre Design/Life Cycle Overview

    Why does the life cycle approach treat design decisions as long-term commitments?

    1. A.Because equipment vendors guarantee prices for the whole life of the site
    2. B.Because the facility will operate for many years and early choices lock in capacity, efficiency and maintainability
    3. C.Because standards forbid any change after the design is approved
    4. D.Because the exam and the certificate are both valid for the life of the building

    Correct answer: B — Because the facility will operate for many years and early choices lock in capacity, efficiency and maintainability

    Explanation: A data centre typically operates far longer than the IT equipment inside it, so decisions on space, power and cooling shape cost and flexibility for years.

  3. Question 3 · Module 1: Data Centre Design/Life Cycle Overview

    During the planning phase, which activity most directly protects the design against future growth uncertainty?

    1. A.Buying all ultimate-capacity equipment on day one regardless of load
    2. B.Fixing the room layout so that no later change is possible
    3. C.Defining current and forecast requirements with modular, phased capacity that can be added as demand grows
    4. D.Deferring all capacity decisions until after the facility is built

    Correct answer: C — Defining current and forecast requirements with modular, phased capacity that can be added as demand grows

    Explanation: Good planning captures present and forecast demand and uses modular phasing so capital is spent as load grows instead of being stranded in oversized plant.

  4. Question 4 · Module 1: Data Centre Design/Life Cycle Overview

    A business merges two sites and the existing data centre no longer matches the new IT strategy. In life cycle terms, what is this activity?

    1. A.Commissioning of newly installed plant
    2. B.Routine preventive maintenance
    3. C.Decommissioning with no replacement service
    4. D.Re-alignment of the facility and its services to changed business requirements

    Correct answer: D — Re-alignment of the facility and its services to changed business requirements

    Explanation: Re-alignment is the deliberate adjustment of an existing data centre — its capacity, layout or services — when business or IT requirements change materially.

  5. Question 5 · Module 1: Data Centre Design/Life Cycle Overview

    Which statement best describes continuous improvement in data centre operation?

    1. A.A recurring cycle of measuring performance, finding gaps, acting on them and re-measuring
    2. B.A one-off project that finishes when the facility opens
    3. C.Replacing all plant whenever a newer model is released
    4. D.Increasing the IT load until the design limit is reached

    Correct answer: A — A recurring cycle of measuring performance, finding gaps, acting on them and re-measuring

    Explanation: Continuous improvement is cyclical: baseline metrics such as energy use and incidents are measured, improvements are made, and results are checked again.

  6. Question 6 · Module 1: Data Centre Design/Life Cycle Overview

    Which set of inputs belongs in the earliest planning stage of a new data centre?

    1. A.Only the colour scheme for the white space
    2. B.Business drivers, availability requirement, IT load forecast, site constraints and budget
    3. C.Only the names of the operations shift team
    4. D.Final rack elevations with no load or availability input

    Correct answer: B — Business drivers, availability requirement, IT load forecast, site constraints and budget

    Explanation: Planning starts from why the facility is needed, how available it must be, how much load it must support, and what the site and budget allow.

  7. Question 7 · Module 1: Data Centre Design/Life Cycle Overview

    What is the main purpose of a post-implementation or operational review in the life cycle?

    1. A.To void the equipment warranties
    2. B.To remove the need for any further maintenance
    3. C.To compare actual performance against the original requirements and feed lessons into the next cycle
    4. D.To increase the passing mark required from operations staff

    Correct answer: C — To compare actual performance against the original requirements and feed lessons into the next cycle

    Explanation: Review closes the loop: actual availability, efficiency and incidents are compared with intent, and the findings drive re-alignment or improvement.

  8. Question 8 · Module 1: Data Centre Design/Life Cycle Overview

    An operator wants to extend the life of an ageing facility instead of building a new one. Which life cycle option is being exercised?

    1. A.Greenfield construction on a new site
    2. B.Immediate decommissioning
    3. C.Outsourcing with no facility change at all
    4. D.Life extension through refurbishment and re-alignment of the existing facility

    Correct answer: D — Life extension through refurbishment and re-alignment of the existing facility

    Explanation: Extending life by upgrading plant, rebalancing capacity and fixing weak points is a recognised end-of-cycle path alongside replacement or closure.

  9. Question 9 · Module 1: Data Centre Design/Life Cycle Overview

    Why should decommissioning be planned as part of the life cycle rather than treated as an afterthought?

    1. A.Because safe removal involves data destruction, hazardous materials, utility disconnection and asset disposal obligations
    2. B.Because decommissioning is the longest phase of operation
    3. C.Because standards require the building to be demolished within one year
    4. D.Because no records are needed once a facility closes

    Correct answer: A — Because safe removal involves data destruction, hazardous materials, utility disconnection and asset disposal obligations

    Explanation: Planned decommissioning protects data, people and the environment and recovers asset value, none of which happens reliably if closure is improvised.

  10. Question 10 · Module 2: Standards and Rating Level Definitions

    Where did the tier and rating concepts for data centres originally come from?

    1. A.From a single government building code issued for offices
    2. B.From early industry efforts in the nineteen nineties to classify facilities by their infrastructure topology and expected availability behaviour
    3. C.From server manufacturers rating their own hardware
    4. D.From fire codes that classified storage warehouses

    Correct answer: B — From early industry efforts in the nineteen nineties to classify facilities by their infrastructure topology and expected availability behaviour

    Explanation: Uptime Institute introduced its tier classification in the nineteen nineties, and standards bodies later developed their own rating systems with different structures and scopes.

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Exam guide

About the EPI CDCS exam

The EPI CDCS (Certified Data Centre Specialist) exam is closed-book, with 60 multiple-choice questions in 90 minutes and a passing mark of 45 out of 60. It is accredited by EXIN; the prerequisite is a valid CDCP certificate, and the certificate is valid for 3 years. EPI publishes no exam fee or module weightings. The table below is study distribution only. This sampler uses questions from the validated practice bank.

CDCS syllabus modules

Study distribution based on syllabus topic counts.

Study distribution based on syllabus topic counts
ModuleSyllabus topicStudy questions
1Data Centre Design/Life Cycle Overview9
2Standards and Rating Level Definitions44
3Building Considerations27
4Advanced Raised Floor & Suspended Ceiling26
5Advanced Power133
6Advanced Electro Magnetic Fields22
7Advanced Cooling115
8Advanced Fire Protection49
9Scalable Networking Cabling26
10Environmental Specifications and Contamination Control18
11Data Centre Efficiency31

Questions

EPI CDCS sample quiz FAQ

What is the EPI CDCS exam format?
The EPI CDCS (Certified Data Centre Specialist) exam has 60 multiple-choice questions, is closed-book, and has a 90-minute time limit.
What is the EPI CDCS passing mark?
The passing mark is 45 out of 60 questions.
Who accredits the EPI CDCS exam?
The EPI CDCS exam is accredited by EXIN.
What is the prerequisite for the EPI CDCS exam?
A valid CDCP certificate is the prerequisite for the EPI CDCS exam.
How long is the EPI CDCS certificate valid?
The EPI CDCS certificate is valid for 3 years.
Does EPI publish an exam fee or module weightings?
EPI does not publish an exam fee or module weightings here. The module counts on this page show study distribution only; they are not exam weightings.
What does the full CDCS practice hub include?
The licensed hub includes a 60-question, 90-minute timed practice exam with saved answers and server-side grading, practice sessions by module with 10-, 25-, or 50-question requests (limited by the number of stored questions in that module), review of missed questions, and a progress view. Module 1 contains 9 stored questions, so it can provide up to 9 distinct questions in one session.

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