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