Which device is used to connect multiple devices on a LAN?

Which device is used to connect multiple devices on a LAN?

• A. Router
• B. Modem
• C. Switch
• D. Hub

Answer: (C)

A switch is used to connect multiple devices on a Local Area Network (LAN) by creating a network segment wherein devices can communicate directly with each other. It operates at the data link layer of the OSI model, intelligently forwarding data frames to specific devices based on their MAC addresses. This capability allows for more efficient network traffic management, as the switch can reduce unnecessary data collisions and increase overall bandwidth. In contrast, while a hub can also connect multiple devices on a LAN, it operates at a much simpler level. It broadcasts incoming data packets to all connected devices, which can lead to greater network inefficiencies and traffic congestion. Hubs do not make decisions about where to send data, resulting in less efficient data handling compared to switches. Routers and modems serve different purposes; routers are used to connect different networks and manage traffic between them, while modems are used to connect a network to the internet. Therefore, the switch stands out as the correct device for connecting multiple devices within a local network efficiently.

A switch is used to connect multiple devices on a Local Area Network (LAN) by creating a network segment wherein devices can communicate directly with each other. It operates at the data link layer of the OSI model, intelligently forwarding data frames to specific devices based on their MAC addresses. This capability allows for more efficient network traffic management, as the switch can reduce unnecessary data collisions and increase overall bandwidth.

In contrast, while a hub can also connect multiple devices on a LAN, it operates at a much simpler level. It broadcasts incoming data packets to all connected devices, which can lead to greater network inefficiencies and traffic congestion. Hubs do not make decisions about where to send data, resulting in less efficient data handling compared to switches.

Routers and modems serve different purposes; routers are used to connect different networks and manage traffic between them, while modems are used to connect a network to the internet. Therefore, the switch stands out as the correct device for connecting multiple devices within a local network efficiently.