What is a switch designed to do within a network?

A switch is a fundamental component in a Local Area Network (LAN) designed specifically to connect multiple devices, such as computers, printers, and servers, and facilitate efficient data transmission between them. It operates at the data link layer (Layer 2) of the OSI model, which allows it to recognize devices on the network and direct data only to the intended recipient rather than broadcasting it to all devices, as a hub would. This targeted data handling significantly improves network performance and reduces collisions, leading to enhanced overall communication efficiency within the network.

Options that refer to encryption, monitoring internet traffic, or routing data packets are related to other network functions. For instance, encrypted data transmission is typically handled by protocols securing the data rather than by switches themselves. Similarly, monitoring network traffic for malicious activity is a function of a security system or intrusion detection system, not a switch. Routing data packets is the responsibility of routers, devices designed to route traffic between different networks, rather than managing local connections within a single network. Hence, the primary role of a switch is accurately captured by the first choice, emphasizing its importance in ensuring effective data management within a LAN.