How many layers are in the OSI model?

The OSI model, or Open Systems Interconnection model, is a conceptual framework used to understand and implement network communication in a structured manner. It consists of seven distinct layers, which are:

1. Application Layer: This is the topmost layer where end-user software interacts with the network. It provides services directly to user applications.

2. Presentation Layer: This layer is responsible for translating data between the application and the network. It ensures that data is in a usable format and can encrypt and compress data for transmission.

3. Session Layer: This layer manages sessions between applications. It establishes, maintains, and terminates connections, allowing different systems to communicate effectively.

4. Transport Layer: This layer is responsible for reliable data transfer between systems across the network. It segments and reassembles data, ensuring error detection and correction.

5. Network Layer: This layer manages the routing of data packets across the network. It determines the best path for data to travel from the source to the destination.

6. Data Link Layer: This layer facilitates the transfer of data between adjacent network nodes. It handles error correction from the physical layer and manages frame synchronization.

7. Physical Layer: The lowest