Which of the following is a common type of fiber optic connector used in telecommunications?

The Subscriber Connector (SC) is widely recognized in the telecommunications industry as a common type of fiber optic connector. It is designed for low-loss performance and features a push-pull coupling mechanism that makes it easy to connect and disconnect. The SC connector is favored for its reliability and is often used in a variety of applications, including data centers and telecommunication networks.

This connector's standardization has led to its prevalent use in various equipment and cabling configurations, making it a preferred choice for fiber optic communications. Its design minimizes the risk of signal loss and improves overall network performance, which are critical factors in telecommunications.