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Computer Network Class questions: ( Please anwser all parts (5 - 10)) Part 2: DNS In this section, we will observe how the DNS protocol
Computer Network Class questions: ( Please anwser all parts (5 - 10))
Part 2: DNS In this section, we will observe how the DNS protocol operates. We will do this by using the Mininet VM. Begin by opening Wireshark and listening on the 'any' interface Open Chromium and navigate to www.example.com 5. (5) Were any steps taken by your computer before the web page was loaded? If so using your captured packets in Wireshark, find the packets that allowed your computer to successfully load http://www.example.com. Take a screenshot of these packets, and explain why you think these are the correct packets. If not, explain why your computer did not need to take these steps In Chromium, navigate to http://216.58.193.68 6. (5) Were any steps taken by your computer before the web page was loaded? If so, using your captured packets in Wireshark, find the packets that allowed your computer to successfully load http://216.58.193.68. Take a screenshot of these packets, and explain why you think these are the correct packets. If not, explain why your computer did not need to take these steps Open a terminal window. Using nslookup, find the A records for www.google.com 7. (5) Take a screenshot of the packets corresponding to your request, and the response from the server. If the request was resolved, what is the IP address you were given for www.google.com? 8. (5) Did your computer want to complete the request recursively? How do you know? Take a screenshot proving your answer. Using nslookup, find the A records for cmpe150.ucsc.ediu 9. (5) Take a screenshot of the packets corresponding to your request, and the response from the server. If the request was resolved, what is the IP address you were given for cmpe150.ucsc.edu? 10. (5) What is the authoritative name server for the ucsc.edu domain? How do you know? Take a screenshot proving your
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