LAN (Local Area Network)
Confined to a single physical location such as a computer lab, classroom, home, or office building. Owned and managed by a single private entity.
- High bandwidth & low data latency
- Connected via Ethernet switches & Wi-Fi Access Points
- Shared printers, local file storage, and gateway routers
WAN (Wide Area Network)
Connects multiple independent LANs across cities, states, or continents using leased telecom infrastructure and undersea fiber optic cables.
- The Internet is the world's largest public WAN
- Routed using IP addresses & Border Gateway Protocol (BGP)
- Requires enterprise routers, telecom ISPs, and high-speed links
Interactive Scope Challenge: Flip to Test!
Confined to a single school building.
Crosses continents via leased telecom lines.
Local home Wi-Fi/Ethernet sharing.
Deep space network connected across global stations.
⚙️ Network Hardware Specifications
Rackmount Server
Dedicated computing powerhouse that hosts central databases, web services, and user authentication.
Cost: $3,500 • Role: Data HubEnterprise Router
Inspects IP packet headers and determines the fastest path across different network boundaries.
Cost: $2,000 • Role: WAN GatewayManaged LAN Switch
Connects multiple devices inside the same room by filtering traffic using physical MAC addresses.
Cost: $800 • Role: Local DistributionFiber Optic Cable
Carries data as laser light pulses over long distances with zero electromagnetic interference.
Cost: $1,500 • Bandwidth: 10 GbpsCopper Twisted Pair
Electrical wire cabling suited for short-distance LAN connections; cost-effective but susceptible to EMI.
Cost: $400 • Bandwidth: 1 Gbps🏙️ Metropolis Enterprise Network Map
Click slots to deploy hardware🎓 Chief Network Architect Exam
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