The packet is
dropped or discarded. By default, a router will send packets
to a network that has been listed in the routing table. If it happens that the
network is not listed, the packet will be discarded or dropped. Packets that do
not have a default route or gateway of last resort are dropped.
What was the content of the lesson? It is hard to answer a question we need context on.
A computational instruction with operands is command so computational instructionis just a opcode.
B. opcode
Thank you for this question. The answer is that an Ip adress stands fo Internet Protocol which acts like a home adress. Bascily it helps you find a node in a network as the IP adress is made of letters and numbers separated by a full stop. I hope you are happy