2.2-3 The HTTP GET.  What is the purpose of the HTTP GET message

24) What is the last updated time if client has a cached copy of the file? Suppose the client-to-server HTTP GET message is the following: HTTP/1.1 GET /kurose_ross_sandbox/interactive/quantum7.html Host: gaia.cs.umass.edu Accept: text/plain, text/html, image/gif, image/jpeg, audio/mp4, audio/vnf.wave, video/mp4, video/mpeg, Accept-Language: en-us, en-gb;q=0.6, en;q=0.7, fr, fr-ch, da, fi, ar, cs f-Modified-Since: Thu, 14 Sep 2023 12:07:49 -0700 User Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0) http message host, running a web browser Internet gaia.cs.umass.edu Web server the Client doesn't have a cached copy of file/ Non of the answers O The last midnight at 12:00 AM O Thu, 14 Sep 2023 12:07:49 -0700

True or False: "Content-Encoding: br" is an acceptable header in a response to an HTTP request with a header of "Accept- Encoding: gzip, deflate". Select one: O True O False

Use the Wireshark packet list display window, shown below, to answer the following question. Protocol Info HTTP Source Destination 192.168.1.5 192.168.1.5 204.126.133.64 GET /phpadmin/js/keyhandler.js HTTP/1.0 GET /myadmin/js/keyhandler.js HTTP/1.0 GET /phpmyadmin/js/keyhandler.js HTTP/1.0 204.126.133.64 HTTP 192.168.1.5 204.126.133.64 HTTP What is the same (common and shared string pattern) in the data of the packets? (hint: do not use or refer to IP addresses as part of your answer) O keyhandler.js O js/keyhandler.js HTTP/1.0 GET

Lab – Routing   Objective   Learn and practice routing using Node and Express.   Specification   Create a web server that Accepts and processes request messages submitted from browser, and Generates and sends response messages back to browser for display.   Your web server must be able to handle URL with hostname and port Request message URL: 0.0.1:3000 Response message: “SUCCESS!” URL with hostname, port and path echo Request message URL: 0.0.1:3000/echo Response message: “SUCCESS! echo” URL with hostname, port, path foxtrot and route parameter value kilo Request message URL: 0.0.1:3000/foxtrot/kilo Response message: “SUCCESS! Received kilo via foxtrot” where the value kilo must be retrieved via the route parameter Invalid/unexpected URL Request message URL: 0.0.1:3000/<any other value> Response message: “FAILED! Fix your URL.”   Hostname 127.0.0.1 can be replaced by localhost.   Port number 3000 can be replaced by any other port number that is from 1024 (2^11)…

IComputer Networking short question. What is the HOL blocking issue in HTTP/1.1? How does HTTP/2 attempt to resolve it?

The purpose of HTTP is to:   a. Format Web pages   b. Transfer Web pages   c. Route addresses   d. None of the above