A router a. Determines on which outgoing link a packet is to be forwarded. b. Forwards a packet to all outgoing links, except the link upon which the packet originated. c. Forwards a packet to all outgoing links. d. Forwards a packet to the next free outgoing link.

Answer: d.

Explanation: The router is a network device that connects devices within a network by sending data packets between them. This information will travel from one machine to another until it reaches its destination. When the package arrives, the device that receives the data assembles the packet, recreating the original message.