正解:C
Plenum cabling is designed for use in commercial spaces where cables run through air ducts or plenum spaces, as it has fire-resistant properties and emits less toxic smoke.
* Why Not A (USB 3.1 Gen 2): USB is for peripheral connections, not large-scale commercial installations.
* Why Not B (Straight tip fiber connector): Fiber connectors are for high-speed connections but are not specifically for commercial spaces.
* Why Not D (Cat 8): While Cat 8 is high-speed, it is not uniquely suited for commercial spaces like plenum cabling.
CompTIA A+ Exam Reference: Core 1 (220-1101), Section 3.1, cabling standards.