What is the purpose of a router in a network?

The purpose of a router in a network is to direct data packets between different networks. This device plays a crucial role in facilitating communication across diverse networks, such as local area networks (LANs) and wide area networks (WANs). Routers analyze incoming data packets, determine the best path for them based on their destination, and forward them accordingly. By connecting multiple networks, routers help manage traffic and ensure that data reaches the correct destination efficiently.

While other functions such as storing data, providing wireless access, and enhancing security are essential components of networking, they do not define the primary role of a router. For example, data storage and management are typically handled by servers or network-attached storage devices, while wireless internet access is facilitated by wireless routers or access points. Similarly, security protocols are usually implemented through firewalls, intrusion detection systems, and various other security appliances, rather than being inherent functions of a router itself.