CDCP Data Center Operations and Maintenance

Question 1

What is the primary purpose of a Data Center Infrastructure Management (DCIM) tool?

Accepted Answer

To provide real-time visibility into power, cooling, and space assets across the data center

Answer

DCIM tools provide a unified platform for monitoring and managing IT and facility infrastructure, enabling capacity planning, energy optimization, and real-time asset tracking.

Question 2

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 as total facility power divided by IT equipment power; a PUE of 1.0 is ideal (all power goes to IT), while higher values indicate overhead from cooling and other infrastructure.

Question 3

Which document formally defines the procedures for safely working on live electrical systems in a data center?

Accepted Answer

Energized Electrical Work Permit (EEWP)

Answer

An Energized Electrical Work Permit (EEWP) is required by NFPA 70E before performing tasks on live electrical equipment, documenting hazard assessments and required PPE.

Question 4

What is a 'hot aisle/cold aisle' containment arrangement designed to achieve?

Accepted Answer

Prevent the mixing of hot exhaust air with cool supply air to improve cooling efficiency

Answer

Hot aisle/cold aisle containment aligns server intake and exhaust sides to prevent hot and cold air mixing, increasing cooling efficiency and reducing PUE.

Question 5

What is the recommended temperature range for data center cold aisles according to ASHRAE guidelines?

Accepted Answer

18°C–27°C (64.4°F–80.6°F)

Answer

ASHRAE A1 class equipment guidelines recommend a cold aisle supply temperature of 18°C–27°C (64.4°F–80.6°F) to safely cool IT equipment while optimizing energy efficiency.

CDCP - Certified Data Centre Professional Practice Test

CDCP - Certified Data Centre Professional Practice Test

CDCP Data Center Operations and Maintenance