World Wide Web (WWW)

2. It is a protocol that enables the transfer of news articles and Usenet posts.
4. It is a protocol used to transfer hypertext documents over the web.
10. Transmits raw data as electrical signals or light pulses.
12. This layer defines protocols and standards for application-level services and user interactions.
13. It provides mechanisms for converting data into a compatible format for the receiving application
14. This protocol allows the transfer of files between computers over a network.
15. It is a protocol that allows users to retrieve email from a mail server.
17. This layer establishes and manages connections between applications on different devices.
18. This language is used to query and manipulate databases
19. This language is used to style the appearance of web pages.
20. This layer ensures the reliable delivery of email messages over the internet.

1. It ensures error-free transmission of data over a single network segment
3. It is a protocol used for real-time chat and instant messaging.
5. It is a protocol used for secure communication over the internet.
6. This layer is responsible for routing and forwarding data packets across different networks.
7. This protocol enables real-time communication between two or more users.
8. This language is used to structure and present content on the web.
9. This layer provides a standard format for exchanging data between web services.
11. Handles error detection and correction, and ensures reliable data transmission.
16. It is a scripting language used for creating interactive web pages.