World of Computer Networking Your CCNA start - Protocol Data Units (PDUs)

The video tutorial explains the concept of Protocol Data Units (PDUs) and their role in the OSI model. It begins with an introduction to bits as the smallest unit of data transmission in the physical layer. The OSI model is divided into media and host layers, with each layer having specific PDUs: frames for the data link layer, packets for the network layer, segments for the transport layer, and data for the application, presentation, and session layers. The tutorial also covers various protocols used in these layers, such as HTTP, FTP, TCP, and UDP, and their interaction with PDUs. The session concludes with a summary of the key points discussed.

What is a bit in the context of the OSI model?

Explain the concept of Protocol Data Units (PDUs) and their significance in the OSI model.

What are the different types of PDUs for each layer of the OSI model?

Describe the role of the transport layer and its associated PDU.

What are some examples of protocols used at different layers of the OSI model?

What protocols are associated with the session layer and what is their function?

How do the data link layer and physical layer interact in the OSI model?