3) [10 marks] Refer to following Figure 2.14 and Figure 16.3. This question is about encapsulation, decapsulation, and protocols. Figure 2.14 illustrates that a TFTP Trivial File Transfer Protocol) packet is encapsulated in a UDP (User Datagram Protocol) segment that in turn is encapsulated in an IP (Internet Protocol) datagram. In Figure 2.14, the length of each row is 32 bits (4 bytes). For example, the length of row "Source Address" is 32 bits long. Figure 16.3 gives the format of IEEE 802.3 frame (used in a LAN), which carries an IP datagram. The "Pad" field in Figure 16.3 is to make sure that the total length of the "LLC Data" and "Pad" is always greater or equal to 46, which means that, when the length of LLC Data is smaller than 46, some Pad bytes will be added. The TFTP data is "3185", which consists of 4 characters. Each character is represented by 8 bits. a) What will be the length of the frame assembled at the sender side (from the beginning of "Preamble" to the end of "FCS")? b) What will be the length of the frame received at the receiver side (from the beginning of "Preamble" to the end of "FCS")? c) What will be the "Total Length" of IP Datagram? d) What will be the "Segment Length" of UDP Segment? e) What will be the total length of TFTP Packet? What will be received by the Transport Layer (UDP) at the receiver side