Palo Alto Networks (PANW) Certified Cybersecurity Entry-level Technician (PCCET) Practice Exam

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When HTTP is used directly to server webpages, it is a protocol of which layer?

Application
Presentation
Session
Transport

The correct answer is: Application

HTTP, or Hypertext Transfer Protocol, is classified as a protocol belonging to the Application layer of the OSI model. The Application layer is responsible for facilitating end-user services and serves as the interface for applications to communicate over a network. HTTP specifically deals with the transmission of hypertext content, enabling the retrieval and display of webpage data for users through web browsers. In this context, it provides the standards for how messages are formatted and transmitted, and actions like requesting or sending resources take place through this protocol. By defining how clients (like web browsers) and servers interact, HTTP operates at the highest level of the OSI model, where user services and application interaction occur. This makes it critical for the functionality of web services, confirming its role within the Application layer.