$1.$What is packetization?

$2.$Why is packetization useful in business data communication?

$3.$What are some of the factors that make packet switching more complex technologically than traditional phone circuits $($circuit switching$)?$

$4.$Provide a high$-$level overview of the structure of a typical data packet. What are the kinds of information you are likely to find in the header of a typical packet?

$5.$Consider a typical office memo as a data packet. What information in the memo would be characterized as header information? What information would be characterized as the body of the packet?

$6.$What is layering? Why is layering useful in organizations?

$7.$What are the five layers of the TCP$/$ IP model?

$8.$What are the primary functions of each layer in the TCP$/$ IP model?

TCP is often considered the most important layer of the TCP$/$ IP model. What are the primary responsibilities of TCP$?$

$9.$What devices does a packet typically encounter in its journey from source to destination?

$10.$What is the OSI model? What are the primary functions of each of the seven layers of the OSI model?

Please answer these questions in simple terms thanks!