What is the main purpose of a bridge in a network?

The main purpose of a bridge in a network is to connect different network segments. Bridges operate at the data link layer of the OSI model, allowing them to interconnect segments of a local area network (LAN) so that they can communicate with one another. This functionality is essential for expanding the network, improving efficiency, and managing traffic between distinct segments seamlessly.

By connecting segments, a bridge can help reduce traffic congestion and isolate collision domains, ensuring that data packets can travel more efficiently within the broader network infrastructure. This capability enhances overall network performance and facilitates communication across larger, segmented networks while maintaining a reliable data exchange process.

While increasing bandwidth, filtering traffic selectively, and managing IP addresses are important aspects of network functionality, these specific tasks are not the primary responsibilities of a bridge.