Hey guys at my work our current IT guy is on leave so i've had to fill in for him. I have this question about Application layers and TCP connection and was wondering if you could help answer it for me. Suppose an application layer entity wants to send an L-byte message to its peer process, using an existing TCP connection. The TCP segment consists of the message plus 20 bytes of header. The segment is encapsulated into an IP packet that has an additional 20 bytes of header. The IP packet in turn goes inside an Ethernet frame that has 18 bytes of header and trailer. What percentage of the transmitted bits in the physical layer correspond to message information, if: L = 400 bytes, L = 800 bytes and L = 1400 bytes?