Unit 1.1 Exercise Answers
What is the protocol of the Internet?
Answer: TCP/IP, which contains instructions for how to handle a message being transmitted from one location to another across the Internet.
What is the main protocol of the Web?
Answer: HTTP. If a message contained within a TCP/IP transmission has an HTTP header, this indicates that the message happens to be a Web transmission; for example, a Web page or a request for a Web page.
Will the two addresses below retrieve different pages? Why or why not?
Answer:They retrieve the same page.The default port for HTTP is 80,so including the port number 80 in the URL is not necessary.