1.

Explain Routing.

Answer»

Routing is basically a process of establishing the routes that data packets take on their way to the destination. It is a process of selecting a path across one or more networks to move a data PACKET from source to destination. Routing is generally performed in many types of networks such as circuit-switched networks, computer networks, ETC. It is considered as one of the most essential features in a network and is done by a DEVICE called routers.

In the above diagram, the data packet moves from Computer A to Computer B. There are two paths available: 

1st- Network 1, 3, and 5 
2nd- Network 2 and 4 

It depends upon network routers to make a choice WHETHER to pass through 1st or 2nd. The 1st one is a long path but might be faster at forwarding packets whereas the 2nd one is a shorter path. These are the kinds of choices that routers have to make constantly.  


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