Question: 1A:Describe the basic structure of the HTTP request and response messages. 1b:Explain what conditional GET is. 1c:Why does the HTTP response from the origin web

1A:Describe the basic structure of the HTTP request and response messages.

1b:Explain what conditional GET is.

1c:Why does the HTTP response from the origin web server to the caching proxy server include only the message header if the object in question has not changed?

1d. Explain and give an example of how cookies are used for implementing an online shopping application.

1e:The following is a real question posted on stackoverflow.com.

Im trying to figure out why you need to specify the hostname in the request.

If I am already connected to "www.google.com", then what is the point of

Host: www.google.com" in the request? Doesnt the server already know its own name?

Use what you learned so far and some critical thinking, in order to provide a green check- worthy answer.

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