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