Computer networks

Problem 1: Briefly answer the following questions (one or two sentences will be enough for each question) a) In the client/server model, how to uniquely identify a client process? b) Which layer in the Internet protocol stack does routing? c) TCP can provide reliable service, but UDP can't. Why do we need UDP? d) Under what condition, will the Selective Repeat protocol be the same as the Stop and Wait protocol? g any chunks. Without any chunks, she cannot become a top-four uploader for any of the other peers, since she has nothing to upload. How will Alice get her first chunk