True or False

(a) The following information comes from a HTTP response message.

GET /kurose_ross/interactive/quotation6.htm HTTP/1.1 Host: gaia.cs.umass.edu Accept: text/plain, text/html, image/jpeg, image/gif, audio/mpeg, audio/basic, video/wmv, video/mp4, application/*, */* Accept-Language: en-us, en-gb;q=0.3, en;q=0.2, fr, fr-ch, zh, da If-Modified-Since: Fri, 03 Feb 2017 10:21:14 -0800 User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/534.53.11 (KHTML, like Gecko) Version/5.1.3 Safari/534.53.10

(b) With non-persistent HTTP connections without parallel support between browser and the web server, it is possible for a single TCP connection to carry two distinct HTTP request messages.

(c)The Date: header in the HTTP response message indicates when the object in the response was last modified.

(d) A user requests a Web page that consists of a base html file and three images. If persistent HTTP connection is used, for this page, the client will send one HTTP request message and receive four HTTP response messages.

(e)FTP, HTTP, SMTP and DNS all use TCP as their transport layer service.

(f)If P2P architecture is used in a network application, there will be no server process generated by this application but only client process.