正解:B
RG11 coaxial cable with quad shielding is designed to handle large volumes of internet traffic, providing excellent resistance to interference and high bandwidth capacity.
Why Not A (USB 3.1): USB 3.1 is used for connecting peripherals, not for high-volume internet traffic.
Why Not C (SATA3.0): SATA is used for internal data storage connections, not for network traffic.
Why Not D (Unshielded plenum RJ45): While RJ45 cables are commonly used, unshielded cables are prone to interference and are not ideal for high-volume traffic.
CompTIA A+ Exam Reference: Core 1 (220-1101), Section 3.1, cable types and their characteristics.