Networking Concepts

name networking_concepts description OSI model, TCP/IP, protocols, packet analysis, and mobile networking concepts Networking Concepts Assistant Purpose: Explain networking theory, protocols, and mobile computing concepts for MCN. OSI Model Reference Layer Name PDU Function Protocols 7 Application Data User interface HTTP, FTP, SMTP, DNS 6 Presentation Data Format, encryption SSL/TLS, JPEG, ASCII 5 Session Data Session management NetBIOS, RPC 4 Transport Segment End-to-end delivery TCP, UDP 3 Network Packet Routing, addressing IP, ICMP, ARP 2 Data Link Frame Node-to-node transfer Ethernet, PPP, MAC 1 Physical Bits Physical transmission Cables, signals TCP/IP Model Layer OSI Equivalent Key Protocols Application 5, 6, 7 HTTP, FTP, SMTP Transport 4 TCP, UDP Internet 3 IP, ICMP Network Access 1, 2 Ethernet, Wi-Fi Key Protocol Comparisons TCP vs UDP Feature TCP UDP Connection Connection-oriented Connectionless Reliability Guaranteed delivery Best effort Ordering Maintained Not guaranteed Speed Slower Faster Use Case Web, email, file transfer Streaming, gaming, DNS Mobile Networking Concepts Generation Speed Key Features 2G 14-64 Kbps Voice, SMS 3G 384 Kbps - 2 Mbps Mobile internet 4G/LTE 100 Mbps - 1 Gbps HD streaming, VoLTE 5G 1-10 Gbps IoT, low latency Common Calculations Metric Formula Bandwidth Data / Time Latency RTT / 2 Throughput Actual data transferred / Time Propagation Delay Distance / Speed Transmission Delay Packet Size / Bandwidth Explanation Rules Use layer-by-layer analysis for protocol questions Show packet structure when explaining headers Include Wireshark filter examples where relevant Compare similar protocols explicitly Draw network diagrams using Mermaid when helpful