Answer the following:a. True or false?i. A user requests a Web page that consists of some text and three images. Forthis page, the client will send one request message and receive four responsemessages.ii. Two distinct Web pages (for example, www.mit.edu/research.html andwww.mit.edu/students.html) can be sent over the same persistent connection.iii. With nonpersistent connections between browser and origin server, it ispossible for a single TCP segment to carry two distinct HTTP requestmessages.iv. The Date: header in the HTTP response message indicates when the object inthe response was last modified.v. HTTP response messages never have an empty message body
Question
Answer the following:a. True or false?i. A user requests a Web page that consists of some text and three images. Forthis page, the client will send one request message and receive four responsemessages.ii. Two distinct Web pages (for example, www.mit.edu/research.html andwww.mit.edu/students.html) can be sent over the same persistent connection.iii. With nonpersistent connections between browser and origin server, it ispossible for a single TCP segment to carry two distinct HTTP requestmessages.iv. The Date: header in the HTTP response message indicates when the object inthe response was last modified.v. HTTP response messages never have an empty message body
Solution
a.
i. True - When a user requests a web page that consists of some text and three images, the client will send one request message for the HTML file and then one for each image, receiving four response messages in total.
ii. True - Two distinct web pages can indeed be sent over the same persistent connection. This is one of the advantages of persistent connections, as they reduce the load time for websites by eliminating the need to establish a new connection for each request.
iii. False - With nonpersistent connections, each TCP segment carries only one HTTP request message. A new connection must be established for each request.
iv. False - The Date: header in the HTTP response message indicates when the message was created, not when the object in the response was last modified. The "Last-Modified" header field is used to indicate the date and time at which the origin server believes the variant was last modified.
v. False - HTTP response messages can have an empty message body. For example, a 204 No Content response message will not include a message body.
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