What are the functions and characteristics of Layer 5 (Session Layer) and Layer 4 (Transport Layer) in the TCP/IP model?
Understand the Problem
The question is about understanding Layer 5 (Session Layer) and Layer 4 (Transport Layer) in the TCP/IP model, focusing on their functions and services related to data transmission between communicating hosts.
Answer
Layer 5 manages sessions; Layer 4 handles data transport.
Layer 5 (Session): Establishes, manages, and terminates connections between applications. Involves dialog control and dialog separation. Layer 4 (Transport): Provides end-to-end communication, data segmentation, reassembly, error-checking, and flow control.
Answer for screen readers
Layer 5 (Session): Establishes, manages, and terminates connections between applications. Involves dialog control and dialog separation. Layer 4 (Transport): Provides end-to-end communication, data segmentation, reassembly, error-checking, and flow control.
More Information
The Session Layer helps apps maintain state and handle dialog management, while the Transport Layer ensures reliable data transfer with protocols like TCP.
Tips
A common mistake is confusing the roles of these layers. Remember, Session is about connection management, while Transport focuses on data reliability.
Sources
- OSI Model: The 7 Layers of Network Architecture - BMC Software - bmc.com
- TCP/IP Model Explained: A Guide to Computer Networking - simplilearn.com
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