5) Consider a new peer Alice that joins BitTorrent without possessing any chunks. Since BitTorrent uses a tit-for-tat control procedure, no peer will want to send any chunks to Alice until she first sends some chunks to them (and becomes one of their top-four uploaders). But she has nothing to upload. So, how then will Alice ever get her first chunk?

6) The transport layer has the critical role of providing communication services directly to the application processes running on different hosts. List two advantages of running an application over TCP.