What model describes the seven layers of network function?

The correct choice, which refers to the Open Systems Interconnection (OSI) model, delineates a framework comprising seven distinct layers that standardize the functions of a telecommunication or computing system. This model serves as a vital conceptual tool in networking, facilitating clear communication and interoperability among diverse systems developed by different manufacturers.

Each layer of the OSI model corresponds to different aspects of the networking process, ranging from the physical transmission of data (Layer 1) to application-level interactions (Layer 7). This stratified approach helps to isolate and define specific network protocols and technologies used at each layer, promoting a systematic way to troubleshoot and design networks.

The OSI model's layers include:

1. Physical Layer – deals with the hardware transmission of raw bitstreams over a physical medium.

2. Data Link Layer – ensures reliable data transfer between two directly connected nodes.

3. Network Layer – manages routing and forwarding of data packets between nodes across networks.

4. Transport Layer – provides reliable data transfer services to the upper layers.

5. Session Layer – manages sessions or connections between applications.

6. Presentation Layer – translates data between the formats the network requires and the format the application understands.

7. Application Layer – provides network services directly to applications.

This comprehensive framework