_____ is defined as a structured network cabling system standard for commercial buildings and between buildings in campus environments.

• A. IEEE 802.3
• B. ANSI/TIA-568
• C. ISO/IEC 11801
• D. IEEE 802.11

Answer: (B)

ANSI/TIA-568 is the standard that defines a structured network cabling system for commercial buildings and for interbuilding links in campus environments. It lays out the complete infrastructure, including horizontal cabling, backbone cabling, and the components that tie it all together (cables, connectors, patch panels, outlets), with performance requirements for both copper and fiber. This focus on a unified, install-ready cabling system used in business and campus settings is why it fits the description best.

IEEE 802.3 covers Ethernet signaling itself, not the whole cabling system. ISO/IEC 11801 is a global generic cabling standard, similar in scope but not the specific commercial/campus framing emphasized here. IEEE 802.11 is for wireless networking, not cabling.