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.
Transmission of raw bits over a medium
Frames data and implements MAC addressing
Uses logical addresses (IP) for routing
Handles IP routing across networks
Performs data translation and encryption
Combines OSI Physical and Data Link functions
End-to-end communication with TCP or UDP
Ensures reliable or best-effort delivery
Implements high-level protocols like HTTP and SMTP
Provides protocols for user-facing applications
Establishes and maintains dialogs between hosts
Physical Layer
Application Layer (TCP/IP)
Transport Layer
Network Access Layer (TCP/IP)
Application Layer
Network Layer
Data Link Layer
Session Layer
Internet Layer (TCP/IP)
Presentation Layer
Transport Layer (TCP/IP)