Certified Data Centre Professional (CDCP) Practice Exam 2025 - Free CDCP Practice Questions and Study Guide

The labeling requirement for vertical and horizontal cables is crucial for effective cable management, maintenance, and troubleshooting within data centers. Choosing to implement a comprehensive labeling strategy that encompasses various points in the cable installation can significantly enhance operational efficiency.

Labeling on the main switch ensures that the main input/output points of the network are easily identifiable. This is essential for understanding the flow of data and electricity throughout the system and aids in quick access during maintenance or upgrades.

Labeling on each floor's Power Distribution Unit (PDU) contributes to clarity at distributed points within the facility. Having reference labels at these strategic locations allows for easier identification of which cables correspond with specific PDUs, facilitating efficient management of power supply across different levels of a data center.

Labeling at both ends of the cables is critical for enabling straightforward tracing of cable paths, helping technicians quickly identify endpoints during troubleshooting. This practice minimizes downtime as it allows for rapid location of problems without the need to follow cables through potentially complex layouts.

Considering these aspects, the correct answer encapsulates a holistic approach to cable labeling, which includes all mentioned points, thus promoting effective management and maintenance practices in data center operations.