Ans :
RJ stands for registered jack. RJ45 is a standard type of connector for network cables. RJ45 connectors are most commonly seen with Ethernet cables and networks. RJ45 connectors feature eight pins to which the wire strands of a cable interface electrically. Standard RJ-45 pin-outs define the arrangement of the individual wires needed when attaching connectors to a cable. RJ-45 connectors are of two types: male RJ-45 and female RJ-45.
