CDCP MCQ 5

Question 1

What is the key difference between RPO and RTO in a data centre disaster recovery plan?

Accepted Answer

RPO is the maximum acceptable data loss; RTO is the maximum acceptable downtime duration

Answer

RPO (Recovery Point Objective) defines how much data loss is acceptable, while RTO (Recovery Time Objective) defines how quickly systems must be restored.

Question 2

In a data centre, what does the term 'Critical Load' refer to?

Accepted Answer

The IT equipment power consumption that must be protected by UPS

Answer

Critical load refers to the IT equipment power that must be continuously protected and supported by the UPS and backup power systems.

Question 3

Which cooling technology uses water circulated directly to the server rack or even to individual components to remove heat?

Accepted Answer

Liquid cooling (direct liquid cooling)

Answer

Direct liquid cooling (DLC) brings chilled water or coolant directly to the heat source—rear-door heat exchangers, cold plates, or immersion tanks.

Question 4

What is the purpose of a 'hot standby' generator configuration in a data centre?

Accepted Answer

The generator is running and warmed up, ready to accept load within seconds

Answer

A hot standby generator is already running and synchronized, enabling near-instantaneous load transfer with minimal transition time.

Question 5

Which metric represents the inverse of PUE and expresses data centre efficiency as a percentage?

Accepted Answer

DCiE (Data Centre Infrastructure Efficiency)

Answer

DCiE = (IT Equipment Power ÷ Total Facility Power) × 100, so a PUE of 1.5 equals a DCiE of 66.7%.

CDCP - Certified Data Centre Professional Practice Test

CDCP - Certified Data Centre Professional Practice Test

CDCP MCQ 5