CDCP Data Center Design Principles 4

Question 1

In data center design, what is the primary purpose of a hot aisle/cold aisle containment strategy?

Accepted Answer

To separate cool supply air from hot exhaust air and improve cooling efficiency

Answer

Hot aisle/cold aisle containment prevents the mixing of supply and exhaust air, which significantly improves cooling efficiency and reduces energy consumption.

Question 2

Which data center tier level, as defined by the Uptime Institute, requires N+1 redundancy and provides 99.741% availability?

Accepted Answer

Tier II

Answer

Tier II data centers feature redundant capacity components (N+1) and provide 99.741% availability with up to 22 hours of annual downtime.

Question 3

What does PUE (Power Usage Effectiveness) measure in a data center?

Accepted Answer

The ratio of total facility power to IT equipment power

Answer

PUE is calculated by dividing total facility power consumption by IT equipment power consumption; an ideal PUE of 1.0 means all power goes to IT equipment.

Question 4

In data center design, what is a 'meet-me room' (MMR)?

Accepted Answer

A neutral interconnection point where multiple carriers exchange network traffic

Answer

A meet-me room is a designated space within a data center where multiple telecommunications carriers and service providers can interconnect their networks.

Question 5

Which raised floor tile perforation percentage is typically used in cold aisles to achieve optimal airflow distribution?

Accepted Answer

25-35%

Answer

Raised floor tiles with 25-35% perforation are commonly used in cold aisles to provide adequate airflow while maintaining proper static pressure under the floor.

CDCP - Certified Data Centre Professional Practice Test

CDCP - Certified Data Centre Professional Practice Test

CDCP Data Center Design Principles 4