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Networking - Interview Questions
What is Router in Networking and How it works?
A router is a virtual networking device that serves two main functions : receive, analyse and forward data packets to intended IP addresses and allow multiple computing devices to share the same internet connection.
 
How does it work?
 
A Router analyses the destination IP addresses of data packets and decide their routing path. To direct these data packets effectively, the router uses a routing protocol, compares it with its internal routing table and identifies the best path from the list to the network destination. It then forwards the data packet down the most efficient path to the given IP address. Routers also help to filter out unwanted interference, provides high-speed internet connectivity, allows users to configure ports as per their requirements and carry out data encapsulation or decapsulation processes.  
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