devops-learning

Welcome to my Cloud/DevOps learning journey.

🌐 20-Day Networking Fundamentals Checklist

🟢 Basics (Days 1–5)

• Day 1: What is a network, LAN vs WAN, Internet basics
• Day 2: Client–server model and device roles
• Day 3: Packet Tracer – logical & physical view
• Day 4: Networking devices (router, switch, server)
• Day 5: How data flows in a network (basic idea)

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🟡 Core Concepts (Days 6–10)

• Day 6: IP address (IPv4 basics)
• Day 7: MAC address and difference from IP
• Day 8: Public vs private IP
• Day 9: Default gateway and routing basics
• Day 10: Subnet basics (intro level only)

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🔵 Communication (Days 11–15)

• Day 11: Ports and why they exist
• Day 12: Common protocols (HTTP, HTTPS, SSH, FTP)
• Day 13: TCP vs UDP (basic understanding)
• Day 14: DNS (domain name resolution process)
• Day 15: End-to-end flow (client → DNS → server → response)

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🟣 Practical & Review (Days 16–20)

• Day 16: Packet Tracer – simple network setup
• Day 17: Identify devices and their roles in a network
• Day 18: Troubleshoot basic connectivity (ping, concept)
• Day 19: Review all concepts + weak areas
• Day 20: Completed Cisco Networking Basics course ✅

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🎯 Outcome

Strong understanding of networking fundamentals required for Cloud & DevOps.