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Free DCDC Practice Questions

10 free, exam-style BICSI Data Center Design Consultant (DCDC) practice questions with answers and explanations. No signup required. Work through them below, then take the full free DCDC practice test to study every exam domain.

Question 1

A hospital's electronic health records system requires the data center to remain operational during any planned maintenance activity, but brief outages during unexpected equipment failures are acceptable. The MINIMUM availability class is:

  1. Class 1
  2. Class 2
  3. Class 3
  4. Class 4
Show answer & explanation

Correct answer: C - Class 3

Question 2

A data center has a designation of F3/C2/N3. What does this indicate?

  1. The facility is fault tolerant, cabling is concurrently maintainable, network has redundancy only
  2. The facility and network are concurrently maintainable, cabling has redundancy only
  3. The cabling is fault tolerant, facility and network are concurrently maintainable with redundancy
  4. The network is fault tolerant, facility and cabling are concurrently maintainable with basic redundancy
Show answer & explanation

Correct answer: B - The facility and network are concurrently maintainable, cabling has redundancy only

Question 3

A data center improves its PUE from 1.8 to 1.4. If the IT load is 2,000 kW, how much total power reduction does this represent?

  1. 400 kW
  2. 600 kW
  3. 800 kW
  4. 1,000 kW
Show answer & explanation

Correct answer: C - 800 kW

Question 4

A data center experiences a utility power outage. The correct sequence of events is:

  1. Generator starts → UPS switches to battery → ATS transfers
  2. UPS supplies power → Generator starts → ATS transfers
  3. IT equipment shuts down → Generator starts → Equipment restarts
  4. Redundant utility feeds prevent any power interruption
Show answer & explanation

Correct answer: B - UPS supplies power → Generator starts → ATS transfers

Question 5

If a data center requires 4 UPS modules to carry the IT load, a 2N configuration would have:

  1. 4 modules
  2. 5 modules
  3. 8 modules
  4. 10 modules
Show answer & explanation

Correct answer: C - 8 modules

Question 6

If a sprinkler head accidentally breaks in a pre-action system (without fire detection trigger), the result is:

  1. Water immediately flows from the broken head
  2. No water flows because the pre-action valve remains closed
  3. The system switches to deluge mode automatically
  4. Water flows but only at reduced pressure
Show answer & explanation

Correct answer: B - No water flows because the pre-action valve remains closed

Question 7

All of the following are clean agent fire suppression systems suitable for data centers **EXCEPT:**

  1. Halon 1301 (bromotrifluoromethane)
  2. Novec 1230 (fluoroketone)
  3. Dry chemical (monoammonium phosphate)
  4. Argonite (nitrogen-argon mixture)
Show answer & explanation

Correct answer: C - Dry chemical (monoammonium phosphate)

Question 8

A facility claims to be Class 3 but the assessment reveals that some UPS maintenance requires an IT load transfer to bypass. This finding means:

  1. The facility meets Class 3 requirements with acceptable maintenance procedures
  2. The facility does NOT fully meet Class 3 concurrent maintainability requirements
  3. Load transfers are acceptable maintenance practices for Class 3 facilities
  4. This finding indicates compliance with Class 3 maintenance standards
Show answer & explanation

Correct answer: B - The facility does NOT fully meet Class 3 concurrent maintainability requirements

Question 9

The data center security plan should contain which FOUR components?

  1. Fencing, cameras, locks, and alarms
  2. Physical security, IT security, disaster recovery, and emergency response
  3. Fire suppression, cooling systems, power backup, and network monitoring
  4. Detection systems, suppression controls, evacuation procedures, and recovery protocols
Show answer & explanation

Correct answer: B - Physical security, IT security, disaster recovery, and emergency response

Question 10

A contractor claims that load bank testing to full design capacity is unnecessary because the UPS and generators passed component-level testing. The DCDC consultant should:

  1. Agree and skip the load bank test
  2. Insist on full-load testing
  3. Only test to 50% of design load
  4. Defer to the contractor's judgment
Show answer & explanation

Correct answer: B - Insist on full-load testing

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