Answer each question separately. Answer will be rated Thank you.

1- What is encapsulation? Define and describe this process. An application message, a TCP segment, an IP packet, and an Ethernet frame are all specific types of PDUs. Which of these is encapsulated at the Transport Layer, the Internet Layer, and the Data Link Layer?

2- Since Ethernet and IP are both unreliable protocols how do we establish a reliable connection between two host computers using these two protocols?