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