What is WAN
🌐 Wide Area Network (WAN) 1. Definition A WAN is a computer network that spans a large geographic area — from cities to entire countries or globally. It connects multiple LANs (Local Area Networks) together, enabling communication and resource sharing across long distances. 👉 The Internet itself is the largest WAN. 2. Key Characteristics 3. Examples 4. Challenges 5. WAN vs Internet 6. WAN vs LAN vs WLAN Feature LAN WLAN WAN Coverage Local (home, office, campus) Local, wireless (Wi‑Fi) Wide area (cities, countries) Connection Ethernet cables Wi‑Fi radio waves Telecom lines, satellites, fiber Speed Very high (100 Mbps–10 Gbps) Variable (depends on Wi‑Fi standard) Lower, depends on distance/infra Ownership Private Private Mix of private & public
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