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