1. URL’s Anatomy 1.02 Understand how to validate, authenticate, and legally use information from the Internet.

2. Finding information is easy ….but How can you validate information obtained from the Internet and determine if it is authentic? Several criteria are used to validate the authenticity of a web page and the first criterion we will discuss is the URL.

3. 1.02 Understand how to validate, authenticate, and legally use information from the Internet. Slide 3 What do you know about the Uniform Resource Locator (URL)? http://www.dpi.state.nc.us/directory/staff.html Protocol Server/Host NameCountry code Extension Page/Document/ Filename Directory/folder Domain Name

4. 1.02 Understand how to validate, authenticate, and legally use information from the Internet. Slide 4 URL’s Anatomy Protocol determines how the file the file will be transferred (in whole or in part). – Examples: http and ftp Domain name includes the name of the server where the information is stored and a suffix (also called an extension) which indicates the type and location of the server.

5. 1.02 Understand how to validate, authenticate, and legally use information from the Internet. Slide 5 Know your suffixes/extensions Do you know what these suffixes indicate? .com .edu .gov .org .net .mil What about these? .uk .au .ca .de

6. 1.02 Understand how to validate, authenticate, and legally use information from the Internet. Slide 6 URL’s Anatomy (Continued) A directory tells the computer specifically where to look for the requested information on the file server. A filename tells which specific document or program should be retrieved from the directory.

7. 1.02 Understand how to validate, authenticate, and legally use information from the Internet. Slide 7 URL’S Appendages Other parts of an URL may include  ~ (tilde) indicates a personal web page .exe or.hqx indicates an executable program  = (equals) indicates a specific document or program  Question mark (?) indicates that the web server will perform some type of calculation before returning the results

8. 1.02 Understand how to validate, authenticate, and legally use information from the Internet. Slide 8 The End