Now do the following: - Start up your web browser, and make sure your browser's cache is cleared. - Start up Wireshark using ethe interface. - 1st HTTP GET. Enter the following URL into your browser hith:llgaia.c5.umass.eduhwireshark-labsiHTIP-witeshark-fle2. html Your browser should display a very simple five-line HTML flle. - 2nd HTTP GET: Quickly enter the same URL. into your browser again (or simply select the refresh button on your browser) - Stop the Wireshark packet capture and fiter on http - Please ignore the /favicon.ico requestiresponse in Wireshark. Answer the following questions: a. Why might your browser issue a Conditional GET? 1st HTTP GET and server response: b. Is the first HTTP GET request from your browser to the server a Conditional GET? Support your answer with a screenshot. c. Inspect the contents of the server response: i. Which HIIP heades specifies the type of content being retumed by the server? What is the value of the header in the server's response? ii. What is the contents of the file? Copy and paste the first sentence. iii. What is the meaning of the header Last-Modified. Identify the date indicated by Last-Modf ffed - what is its meaning? Support your answers to i, ii and iii with one screenshot and appropriate markup. 2nd HTTP GET and server response: d. Now inspect the contents of the second HITP GET request from your browser to the server. i. What is the "IF-NOOIFIED-SINCE:" header and why is it used? Identify the date in the value and what does it mean? ii. What is the HTTP status code and phrase returned from the server in response to this second HTTP GET? What does the status code indicate? Explain your answer. iii. Was a file retumed by the server? How do you know? Explain and justify your answer. Support with a screenshot and highlight your answers. Frane 66: 294 bytes on wire (2352 bits), 294 bytes captured (2352 bits) on iaterface 0 Ethernet 11, 5re: Realteht_ 12:35:82 (52:54:80:12:35:02), Dst: Codousco 77:(6:3a,(08:00:27:27;c6:3a) Internet Protocol version 4, 5rc; 128. 119.245, 12 (128,119.245.12), Dst: 10.0.2.15 (10.0.2.15) Transmission Control Protocol, 5rc port: htep (80), Dst Port: 60426 (60426), 5eq: 7, Acki 555, Lent 240