Chapter 3- Transport Layer: Question 1: Describe why an application developer might choose to run an application over UDP rather than TCP Question 2: Is it possible for an application to enjoy reliable data transfer even when the application runs over UDP? If so, how? Question 3: Suppose Client X initiates a Telnet session with Server Z. At about the same time, Client Y also initiates a Telnet session with Server Z. Provide possible source and destination port numbers for (port number for telenet application is 23) a) The segments sent from X to Z. (source port- , destination porta b) The segments sent from Z to X. (source port- , destination port- ) c) The segments sent from Y to Z. (source port- destination port- ) d) The segments sent from Z to Y. (source port- destination port- ) e) If X and Y are different hosts, is it possible that the source port number in the segments from X to Z is the same as that from Y to Z? ) If X and Y are Same hosts, is it possible that the source port number in the segments from X to Z is the same as that from Y to Z