3. Assume a five layer TCP/IP model. There are A bytes of application data. A B byte header is added at the transport layer, a C byte header is added at the internet layer and a D byte header is added at the network interface layer. The network interface layer also adds an E byte trailer. Express the answers to the questions below in terms of A, B, C, D, and E a. b. c. d. How many total bytes are sent to the physical layer? What percentage of the bytes sent to the physical layer is overhead? How many total bytes are in the transport layer packet? What percentage of the bytes in the transport layer packet is overhead