FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Let’s go through key differences between switch and hub: A hub is a networking device that connects multiple PCs to a single network, whereas a Switch connects multiple devices on a single computer network. A hub operates on the OSI physical layer, whereas a switch operates on the OSI data link layer.

Detailed explanation-2: -A switch is more intelligent than a hub. As a hub, a switch is the connection point for the computers (and other devices) in a network. However, a switch is more efficient at passing along traffic. It records the addresses of the computers connected to it in a table.

Detailed explanation-3: -Hubs are basic network devices that operate at the Physical Layer and they do not perform packet filtering or addressing function; they send the data packets to all the connected devices. Switches, on the other hand, function at the Data Link Layer to connect several devices in a network.

Detailed explanation-4: -A switch will keep track of the plugged-in devices accessing the network by their Media Access Control addresses (MAC addresses) and will send received frames (packets of data transmitted as a single unit) to the designated port without causing lag on the network. A hub will share its bandwidth equally among all ports.

Detailed explanation-5: -1. Hub belongs to layer 1 of an OSI model that means it is a physical layer device. Switch belongs to layer 2 of an OSI model that means it is a data link layer device. Router belongs to layer 3 of an OSI model that means it is a network layer device.