1. Consider the following pieces of information that can be associated with any socket: IP_sre (IP source), IP_dest (IP destination), Port_sre, Port_dest. Given this: a. List which pieces are needed for demultiplexing at the transport layer when using UDP. b. List which he pieces needed for demultiplexing at the transport layer when using TCP. 2. True/False: TCP (at the destination) does NOT distinguish where the segment came from. 3. True/False: No client host on the Internet opening a socket will share the same source port number. 4. Why is TCP referred to as "connection-oriented", and why UDP is referred to as "connectionless". Explain (thoughtfully] in your own words