2.2-9 Why Web Caching? Which of the following are advantages of using a web cache? Sselect one or more answers. Select one or more: a. Caching generally provides for a faster page load time at the client, if the web cache is in the client's institutional network, because the page is loaded from the nearby cache rather than from the distant server b. Caching uses less bandwidth coming into an institutional network where the client is located, if the cache is also located in that institutional network c. Caching allows an origin server to more carefully track which clients are requesting and receiving which web objects. d. Overall, caching requires fewer devices/hosts to satisfy a web request, thus saving on server/cache costs 2.1-2 The peer-to-peer (P2P) paradigm. Which of the characteristics below are associated with a P2P approach to structuring network applications (as opposed to a client-server approach)? Select one or more: a HTTP uses this application structure, b. A process requests service from those it contacts and will provide service to processes that contact it. c. There is a server with a well known server IP address. d. There is a server that is always on. e. There is not a server that is always on 2.3-5 Which e-mail protocol? Match the functionality of a protocol with the name of a the email protocol (if any) that implements that functionality Pulls email to a mail client from a mail server. Choose... IMAP SMTP Neither SMTP nor IMAP does this. Pulls mail from one mail server to another mail server, Pushes email from a mail client to a mail server, Choose