MCQ Detailed View

The primary function of the Network Layer in the OSI model is to handle logical addressing and routing of data across different networks.

This layer is responsible for making sure data is delivered from the source to the destination—even if they are located in different networks or regions. It does this using logical addresses, like IP addresses, and routing decisions based on network paths.

Main tasks of the Network Layer include:

• Logical Addressing: Assigning IP addresses to identify devices uniquely across networks.


• Routing: Finding the best path through one or more networks to reach the destination device.


• Packet Forwarding: Sending data packets from one router to another until they reach their target.

This layer works independently of the physical transmission and focuses on how data moves from point A to point B through routers and IP-based communication.

Conclusion: The Network Layer plays a critical role in delivering data across interconnected networks. Its main job is logical addressing and routing, helping ensure data reaches the right device no matter where it is located.