Hub is a physical device that connects computer in a Network. Hub is mostly used in Star network topology and it is connected by twisted pair cable which has the RJ45 connector.
Hub is called unintelligent device because it does not have capability of reading the destination IP address. When source system send a data to the destination system, the data is broadcasted to all connected in the network. Destination system alone will accept the data matching the MAC address where other system will reject the packet sent by Source system.
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