1 / 29

Understanding Browser, Server, URL, and Cookies in the World Wide Web

This chapter explores the architecture of the World Wide Web, including the components of a browser and a server, the function of the URL and cookies, and how HTTP accesses data on the WWW. It also discusses the different types of web documents: static, dynamic, and active.

tconnors
Download Presentation

Understanding Browser, Server, URL, and Cookies in the World Wide Web

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 22 World Wide Web:HTTP Objectives Upon completion you will be able to: • Understand the components of a browser and a server • Understand the function of the URL and cookies • Understand how HTML is related to static documents • Understand how CGI is related to dynamic documents • Understand how Java is related to active documents • Know how HTTP accesses data on the WWW TCP/IP Protocol Suite

  2. 22.1 ARCHITECTURE The WWW is a distributed client-server service, in which a client using a browser can access a service using a server. The service provided is distributed over many locations called sites. The topics discussed in this section include: Client (Browser) Server Uniform Resource Locator (URL) Cookies TCP/IP Protocol Suite

  3. Figure 22.1Architecture of WWW TCP/IP Protocol Suite

  4. Figure 22.2Browser TCP/IP Protocol Suite

  5. Figure 22.3URL TCP/IP Protocol Suite

  6. 22.2 WEB DOCUMENTS The documents in the WWW can be grouped into three broad categories: static, dynamic, and active. The category is based on the time the contents of the document are determined. The topics discussed in this section include: Static Documents Dynamic Documents Active Documents TCP/IP Protocol Suite

  7. Figure 22.4Static document TCP/IP Protocol Suite

  8. Figure 22.5Boldface tags TCP/IP Protocol Suite

  9. Figure 22.6Effect of boldface tags TCP/IP Protocol Suite

  10. Figure 22.7Beginning and ending tags TCP/IP Protocol Suite

  11. Figure 22.8Dynamic document using CGI TCP/IP Protocol Suite

  12. Figure 22.9Dynamic document using server-site script TCP/IP Protocol Suite

  13. Note: Dynamic documents are sometimes referred to as server-site dynamic documents. TCP/IP Protocol Suite

  14. Figure 22.10Active document using Java applet TCP/IP Protocol Suite

  15. Figure 22.11Active document using client-site script TCP/IP Protocol Suite

  16. Note: Active documents are sometimes referred to as client-site dynamic documents. TCP/IP Protocol Suite

  17. 22.3 HTTP The Hypertext Transfer Protocol (HTTP) is a protocol used mainly to access data on the World Wide Web. HTTP functions like a combination of FTP and SMTP. The topics discussed in this section include: HTTP Transaction Persistent versus Nonpersistent Connection Proxy Server TCP/IP Protocol Suite

  18. Note: HTTP uses the services of TCP on well-known port 80. TCP/IP Protocol Suite

  19. Figure 22.12HTTP transaction TCP/IP Protocol Suite

  20. Figure 22.13Request and response messages TCP/IP Protocol Suite

  21. Figure 22.14Request and status lines TCP/IP Protocol Suite

  22. Table 22.1 Methods TCP/IP Protocol Suite

  23. Table 22.2 Status codes TCP/IP Protocol Suite

  24. Table 22.2 Status codes (continued) TCP/IP Protocol Suite

  25. Figure 22.15Header format TCP/IP Protocol Suite

  26. Table 22.3 General headers TCP/IP Protocol Suite

  27. Table 22.4 Request headers TCP/IP Protocol Suite

  28. Table 22.5 Response headers TCP/IP Protocol Suite

  29. Table 22.6 Entity headers TCP/IP Protocol Suite

More Related