TestOut LabSim A+ Certification Practice Exam 2026 – The All-in-One Guide to Ace Your Certification!

The selected answer highlights the essential characteristics of Basic Rate ISDN (BRI). BRI is designed to provide digital connectivity over standard telephone lines and is commonly used for ISDN applications. The key features of BRI include:

- **Dial-up connection**: BRI supports dial-up technology to establish a connection, allowing it to be utilized in environments where traditional analog phone lines are available.

- **One control channel**: BRI consists of one D channel (the control channel) that manages the signaling and control information for the connection.

- **Two data channels**: Alongside the control channel, BRI is equipped with two B channels, which provide a total data throughput of 64 Kbps each, enabling two simultaneous voice or data calls.

These features make BRI suitable for small businesses and organizations seeking a digital service that can handle multiple communications over typical phone lines while maintaining some bandwidth for control signaling.