Which of the following OSI model layers is responsible for routing and forwarding data packets between different networks?  Data Link LayerCorrect!  Network Layer   Transport Layer   Session Layer

The OSI model is a conceptual framework that defines the different layers involved in network communication. Each layer has specific responsibilities and functions.

In this question, we are asked to identify the layer responsible for routing and forwarding data packets between different networks.

To determine the correct answer, we need to understand the functions of each layer.

The Data Link Layer is responsible for the reliable transmission of data frames between adjacent network nodes. It deals with issues such as error detection and correction, flow control, and access to the physical media.

The Network Layer, on the other hand, is responsible for the logical addressing and routing of data packets between different networks. It determines the best path for data packets to reach their destination and handles the addressing and forwarding of packets across multiple networks.

The Transport Layer is responsible for the end-to-end delivery of data between hosts. It ensures reliable and efficient data transfer, handles segmentation and reassembly of data, and provides error recovery mechanisms.

The Session Layer is responsible for establishing, managing, and terminating sessions between applications. It provides services such as session establishment, synchronization, and checkpointing.

Based on this information, we can conclude that the layer responsible for routing and forwarding data packets between different networks is the Network Layer.