4.3.10. Network Address Translation (NAT). Which one of the following operations is NOT performed by NAT.? On an outgoing datagram, changing the source IP address of a datagram received from the LAN side of the NAT On an incoming datagram from the public Internet side of a NAT, changing the destination IP address of a datagram to a new destination IP address that is looked up in the NAT table, and (possibly after other actions), sending that IP datagram on to the LAN side of the NAT. On an outgoing datagram, changing the transport-layer port number of the transport-layer segment inside a datagram received from the LAN side of the NAT. O Generating ACKS back to the TCP sender and then taking responsibility for reliably delivery the segment to its destination, possibly using a non- TCP reliable data transfer protocol.

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Network Protocols

A network protocol is a set of rules that govern how data is exchanged between the devices in a network. Network protocols enable communication between devices that are located in different parts of the world. Consequently, they are critical in today's digital communications.