Which layer is specifically responsible for network addressing and routing?

The Network Layer is specifically responsible for network addressing and routing. This layer operates at the third level of the OSI (Open Systems Interconnection) model and is crucial for data transmission across multiple networks. It is in this layer that logical addressing, such as IP addresses, is utilized, which enables devices to identify and communicate with each other over a network.

The Network Layer also handles the routing of data packets between the source and destination across interconnected networks. It determines the best path for data to travel, ensuring that messages can be sent efficiently and effectively through a complex web of devices and networks. This is a core function of networking, enabling devices in different locations to connect and share information.

Understanding the role of the Network Layer is essential for anyone working with network installations and troubleshooting, as it lays the groundwork for successful communication between devices in a network environment.