What is the primary function of a switch in a network?

Prepare for the MTA Networking Fundamentals Test with our study materials. Use flashcards, multiple choice questions with hints and explanations for each answer. Ace your exam and enhance your networking skills!

The primary function of a switch in a network is to filter and forward data to specific devices. This is achieved by examining the destination MAC addresses of the incoming data frames and matching them with the MAC addresses in its internal table that tracks devices connected to its ports. When a switch receives a data packet, it checks the destination address and forwards that packet only to the port that leads to the intended recipient device. This process, known as switching or packet forwarding, helps ensure that network traffic is efficiently directed, minimizing unnecessary congestion and collisions on the network.

In contrast, connecting multiple networks is typically the function of a router. Storing network data does not align with the primary role of a switch; rather, switches simply manage and redirect traffic without retaining data. While managing network traffic is a broader term that can encompass various tasks, switches mainly focus on the task of directing data packets to the appropriate devices rather than overall traffic management across the network. Thus, the correct answer emphasizes the specific, essential task that defines a switch’s role within a local area network (LAN).

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