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This chapter is from the book

Unit 1.1 Exercise Answers

  1. 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.

  2. 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.

  3. Will the two addresses below retrieve different pages? Why or why not?

    http://www.bbc.co.uk:80
    http://www.bbc.co.uk

    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.

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