Understanding E-Services and Internet Communication Protocols

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Quel protocole est utilisé pour envoyer des documents entre un serveur et un navigateur web?

Qu'est-ce qu'un service web?

Quels sont les avantages de l'utilisation des services électroniques?

Quels sont les niveaux de communication sur internet?

Comment peut-on accéder à un service web?


  • Internet is a network of interconnected computers that enables users to communicate with each other.
  • The network is made up of servers that provide services to users (e-services).
  • E-services are any applications that are accessible via the web, providing a set of features to users or businesses.
  • The advantages of using e-services include the ability to access services at any time and from anywhere, as well as the expansion of the market.
  • The various levels of communication on the Internet are physical (bits), computer-to-computer (HTTP), and computer-to-application (APPs).
  • HTTP is the protocol used to transfer documents between a server and a client web browser.
  • IMAP is a protocol used for email delivery that filters emails and delivers them automatically.
  • SMTP is the protocol used to send messages between servers.
  • FTP is a protocol used to transfer files between computers.
  • A Web Service is a software component that is accessible over the internet, and it is used to provide a limited set of functions that can be accessed using standard internet protocols.
  • A Web Service can be exposed on the internet, and it can be found by searching for it using a search engine.
  • A Web Service can be found by browsing through its online description.
  • A Web Service can be accessed by either synchronous or asynchronous methods.


Test your knowledge about the internet as a network of interconnected computers, e-services, communication protocols like HTTP, IMAP, SMTP, and FTP, and web services accessible over the internet.

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