BNC connectors are commonly used for coaxial cables, including those connecting to external antennas in Wi- Fi, radio, and surveillance systems.
Breakdown of Options:
A). BNC - Correct answer. Used for coaxial cables in wireless and antenna connections.
B). ST - Used for fiber optic cables, not antennas.
C). LC - A fiber optic connector, not for antennas.
D). MPO - Used for multi-fiber optic cables, not RF antennas.
Reference:
CompTIA Network+ (N10-009) Official Study Guide - Domain 1.1: Compare and contrast physical network connectors.
IEEE 802.11: Wireless standards and antenna connectors