CDCP MCQ 2

Question 1

What does PUE stand for in data centre efficiency metrics?

Accepted Answer

Power Usage Effectiveness

Answer

PUE (Power Usage Effectiveness) is the ratio of total facility power to IT equipment power, where 1.0 is perfect efficiency.

Question 2

Which cooling approach delivers cold air directly to server intakes via enclosed channels between cabinet rows?

Accepted Answer

Hot aisle/cold aisle containment

Answer

Hot aisle/cold aisle containment separates exhaust and intake air streams to prevent mixing and improve cooling efficiency.

Question 3

In data centre design, what is the purpose of an N+1 redundancy configuration?

Accepted Answer

To provide one additional component beyond minimum required for operation

Answer

N+1 redundancy means one extra component exists beyond the minimum needed (N), allowing one failure without service interruption.

Question 4

What is the primary function of a DCIM (Data Centre Infrastructure Management) system?

Accepted Answer

Monitoring and managing physical data centre assets, power, and cooling

Answer

DCIM tools provide real-time visibility and management of physical infrastructure including power, cooling, space, and assets.

Question 5

Which Uptime Institute Tier level requires all components to be fully redundant with no single points of failure?

Accepted Answer

Tier IV

Answer

Tier IV (Fault Tolerant) requires 2N redundancy and can sustain any planned or unplanned event without impact to critical load.

CDCP - Certified Data Centre Professional Practice Test