Which of the following is the appropriate network that is used by large organisations over regional, country, and global areas?

Correct option is D

A Wide Area Network (WAN) is a type of computer network that covers large geographical areas, such as regions, countries, or even continents. It connects multiple Local Area Networks (LANs) and other smaller networks over long distances using communication technologies such as leased lines, satellite links, and fiber-optic connections. Large organizations and service providers use WANs to enable communication and data sharing between offices located in different cities or countries. The Internet itself is the most prominent example of a WAN.
Important Key Points:
1. A WAN (Wide Area Network) covers large geographical areas such as regions, countries, or continents.
2. It connects multiple LANs and other networks across long distances.
3. WANs use communication technologies such as fiber optics, satellite links, and leased communication lines.
4. The Internet is the largest example of a WAN.
Knowledge Booster:
· LAN: A Local Area Network covers a small geographical area, such as a home, office, or single building.
· Ethernet: Ethernet is a networking technology or protocol used mainly for wired LAN communication, not a type of large-area network.
· MAN: A Metropolitan Area Network covers a city or metropolitan region, which is larger than a LAN but smaller than a WAN.