🔍 Dive into the 7 layers of the OSI Model — the foundation of how data travels across networks! From physical cables to application-level protocols, this poster breaks down each layer with real-world examples, device roles, and key protocols. Perfect for students, IT professionals, and anyone curious about how the internet really works! 🌐💡 Save it, share it, and tag a friend who’s learning networking! 👨‍💻👩‍💻 #OSIModel #NetworkingBasics #TechEducation #NetworkEngineer #CyberSecurity #ITTra

🌐OSI Layers & Protocols — The Language of Networking If you want to build a career in Networking, Cybersecurity, Cloud or DevOps, then understanding the OSI Model & its protocols is absolutely essential. The OSI Model explains HOW data travels across a network — step by step: 📶 Layer 1 – Physical: Cables, signals, NICs 🧾 Layer 2 – Data Link: MAC, ARP, VLAN, STP 🌍 Layer 3 – Network: IP, OSPF, ICMP, EIGRP, BGP 📦 Layer 4 – Transport: TCP/UDP, reliability 🔄 Layer 5 – Session: Connection contro