Question

Explain the difference between LAN (Local Area Network) and WAN (Wide Area Network).

Hint:

\textbf{Remember:} LAN = Small area network (home, school). WAN = Large area network (internet, worldwide).

Answer 1

Concept: Computer networks allow multiple devices to connect and share data. Based on geographical coverage, networks are classified into types such as LAN and WAN. LAN (Local Area Network): A Local Area Network (LAN) is a network that connects computers and devices within a small geographic area, such as a home, school, office, or building. Features of LAN:

Covers a limited area
High data transfer speed
Privately owned and managed
Low cost of setup and maintenance
Examples:

School computer lab network
Home Wi-Fi network
Office internal network
WAN (Wide Area Network): A Wide Area Network (WAN) is a network that covers a large geographic area, such as cities, countries, or even the entire world. It connects multiple LANs together. Features of WAN:

Covers large distances
Lower speed compared to LAN
Expensive infrastructure
Managed by telecom companies or governments
Examples:

The Internet
Banking networks across countries
Mobile communication networks
Difference Between LAN and WAN: \begin{center} \begin{tabular}{|c|c|c|} \hline Feature & LAN & WAN
\hline Full Form & Local Area Network & Wide Area Network
\hline Coverage Area & Small area & Large geographic area
\hline Speed & High & Lower than LAN
\hline Cost & Less expensive & More expensive
\hline Ownership & Private & Public or shared
\hline Example & Home network & Internet
\hline \end{tabular} \end{center} Conclusion: LAN is used for networking within a small area with high speed and low cost, while WAN connects networks across large distances and enables global communication.