NETWORK LAYER
UNICAST ROUTING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Forwards a packet to all outgoing links
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Forwards a packet to the next free outgoing link
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Determines on which outing link a packet is to be forwarded
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Forwards a packet to all outgoing links except the originated link
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Detailed explanation-1: -The router uses the information in the IP header to decide whether and where to forward each received packet, and which network interface to use to send the packet. Most packets are forwarded based on the packet’s IP destination address, along with routing information held within the router in a routing table.
Detailed explanation-2: -A primary function of a router is to determine the best path to use to send packets. To determine the best path, the router searches its routing table for a network address that matches the destination IP address of the packet.
Detailed explanation-3: -Among computer networks, a router is a networking device that forwards data packets. Packet switching, packet filtering, network communication, and path selection are all services offered by routers.