MCQ Detailed View

The OSI model has 7 layers that are arranged in a specific order. When listed from top to bottom, it starts with the layer closest to the user and goes down to the layer that deals with the actual physical connection.

The correct top-to-bottom order of the OSI model is:

• Application


• Presentation


• Session


• Transport


• Network


• Data Link


• Physical

This order helps us understand how data travels from a user’s application, through the network, and down to the hardware level.

The Application layer provides services to the user. The Presentation layer formats the data. The Session layer manages communication sessions. The Transport layer ensures reliable data transfer. The Network layer handles routing. The Data Link layer manages connections between devices, and the Physical layer deals with cables, signals, and hardware.

This structure makes it easier to build and troubleshoot networks.