Network

Core Protocols

• Internet - Internet architecture, layers, and delay
• TCP - Transmission Control Protocol, flow control, and congestion
• UDP - User Datagram Protocol and performance
• IP - Internet Protocol, addressing, and ICMP

HTTP

• HTTP - HTTP/1.x connections, messages, and status codes
• HTTP 2 - HTTP/2 and HTTP/3 multiplexing and QUIC
• HTTPS - TLS encryption, certificate workflow, and CORS

Security and Transport

• TLS - Transport Layer Security and performance
• Ethernet - MAC addressing, switches, and ARP

Network Infrastructure

• Physical Layer - Twisted pair, error detection, and toolchain
• Access Network - ADSL, FTTH, PPPoE, and ISP
• Wireless - Wireless network types and performance optimization

Toolchain

• Toolchain - Network commands, certificates, firewall, and connectivity