Question

WHAT ARE THE 7 LAYERS OF THE OSI NETWORK MODEL IN ORDER 1-7?

Answer 1

The 7 layers of the OSI network model in order 1-7 are: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

Step-by-step explanation:

1. Physical Layer: This layer deals with the physical transmission of data over the network. It includes hardware components like cables, connectors, and network interfaces.
2. Data Link Layer: This layer ensures reliable transmission of data between two directly connected devices. It manages error detection and correction and organizes data into frames.
3. Network Layer: This layer is responsible for logical addressing and routing of data packets across multiple networks. It determines the best path for data transmission.
4. Transport Layer: This layer provides end-to-end communication by establishing a reliable connection between applications. It handles segmentation and reassembly of data, flow control, and error recovery.
5. Session Layer: This layer establishes and maintains communication sessions between applications. It manages session control and synchronization.
6. Presentation Layer: This layer handles data formatting and conversion so that applications can understand each other's languages and data formats.
7. Application Layer: This layer provides network services directly to user applications. It includes protocols like HTTP, FTP, SMTP, and DNS.