IP : 203.81.192../19 32-19=13 host bits Turn all host bits on you will get broadcast address 203.81.223.225 Apply AND operation between IP and subnet mask you will get network id IP AND Subnet mask = Network id Hub - broadcast, collision An Ethernet hub, active hub, network hub, repeater hub, multiport repeater or hub is a device for connecting multiple Ethernet devices together and making them act as a single network segment . It has multiple input/output (I/O) ports, in which a signal introduced at the input of any port appears at the output of every port except the original incoming. A hub works at the physical layer (layer 1) of the OSI model . [1] The device is a form of multiport repeater. Repeater hubs also participate in collision detection, forwarding a jam signal to all ports if it detects a collision . Switch – ...
