OSI and TCP IP Model Layers
Cisco CCNA 200-301 PBQ
Match OSI and TCP/IP model layer names to their core functions, services, and associated protocols to reinforce an understanding of each layer’s responsibilities.
End-to-end communication with TCP or UDP
Uses logical addresses (IP) for routing
Establishes and maintains dialogs between hosts
Combines OSI Physical and Data Link functions
Handles IP routing across networks
Frames data and implements MAC addressing
Provides protocols for user-facing applications
Performs data translation and encryption
Transmission of raw bits over a medium
Ensures reliable or best-effort delivery
Implements high-level protocols like HTTP and SMTP
Session Layer
Application Layer (TCP/IP)
Physical Layer
Application Layer
Internet Layer (TCP/IP)
Presentation Layer
Network Layer
Network Access Layer (TCP/IP)
Data Link Layer
Transport Layer
Transport Layer (TCP/IP)