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

To manage email servers

Answer

To configure network firewalls

Answer

To perform automated software deployments

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

The percentage of renewable energy used

Answer

The efficiency of UPS battery storage

Answer

The power load per rack unit

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

Business Continuity Plan (BCP)

Answer

Acceptable Use Policy (AUP)

Answer

Service Level Agreement (SLA)

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

Separate staff walkways from equipment areas

Answer

Isolate high-security servers from general rack rows

Answer

Route power cables away from data cables

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

10°C–15°C (50°F–59°F)

Answer

30°C–35°C (86°F–95°F)

Answer

5°C–10°C (41°F–50°F)

Question 6

What is a 'Change Management' process in data center operations?

Accepted Answer

A formal procedure to evaluate, approve, and document modifications to the IT or facility infrastructure

Answer

A method for updating employee payroll

Answer

A protocol for replacing failed hard drives

Answer

A security audit performed annually