MCQ Detailed View

When data is transferred over a network, it is broken down into smaller parts at different OSI layers. At the Network Layer, these parts are known as packets. Each packet includes important information such as the source and destination IP addresses, which help in routing the data across different networks.

Why are packets important?

• Routing: Packets allow routers to decide the best path for data to travel through the network.


• Addressing: Packets carry IP addresses so the data reaches the correct destination device.


• Efficiency: Breaking large data into packets helps avoid congestion and makes communication faster.

Each layer of the OSI model has its own name for the data unit:

• Physical Layer: Bit


• Data Link Layer: Frame


• Network Layer: Packet


• Transport Layer: Segment

Conclusion: The Network Layer uses Packets to carry and route data between different networks. Understanding packets is essential for anyone studying networking or preparing for technical interviews.