Which standard governs the telecommunications infrastructure for data centers?

The correct answer is C, TIA-942, because it specifically addresses the telecommunications infrastructure for data centers. This standard provides detailed guidelines and specifications on various essential aspects, including data center design, architecture, physical site considerations, and the various components of the telecommunications systems within data centers. It emphasizes optimal pathways and spaces for cabling, which are crucial for ensuring the efficiency and reliability of data communications.

TIA-942 outlines critical elements such as the design of telecommunications rooms, the arrangements for cabling (both copper and fiber), and the necessary connectivity for network equipment. By adhering to TIA-942, data center designers can develop an effective telecommunications infrastructure that supports current and future data processing needs while ensuring scalability and redundancy.

In contrast, the other standards mentioned do not specifically focus on telecommunications infrastructure in data centers. ISO/IEC 27001 pertains to information security management systems, IEEE 802.3 deals with Ethernet networking, and ANSI/TIA-603 focuses on land mobile radio communications. While these standards play important roles in their respective areas, they do not apply directly to the overarching telecommunications design requirements outlined in TIA-942 for data centers.