Which of the following networks is used to connect computers in large area such as continents etc.?

Correct option is B

​A Wide Area Network (WAN) is a type of network that spans a large geographical area, such as cities, countries, or even continents. WANs are used to connect computers and networks across long distances, enabling communication and resource sharing on a global scale.

Examples of WANs include:

• The Internet (the largest WAN).
• Corporate networks connecting offices across different countries.

Important Key Points:

1. WAN Characteristics:
• Large Coverage Area: Connects devices across cities, countries, or continents.
• Technology Used: Leased communication lines, satellite links, and public networks like the Internet.
2. Examples of WAN Usage:
• Global business operations to connect branch offices.
• Banking systems for centralized operations across different regions.
3. Other Networking Types:
• LAN (Local Area Network): Covers a small area like an office or building.
• Bluetooth: Wireless technology for short-range communication.
• Wi-Fi: Provides wireless connectivity within a limited range.

Knowledge Booster:

1. Why Not Other Options?
• a) LAN:
• Incorrect. A LAN is used for local connectivity within a limited area like a building or campus.
• c) Bluetooth:
• Incorrect. Bluetooth is for short-range, wireless communication, typically within a few meters.
• d) Wi-Fi:
• Incorrect. Wi-Fi provides wireless network access within a limited range, usually for local networks like homes or offices.
2. Key Differences Between WAN and LAN:
• WAN: Large area, slower speeds compared to LAN, uses leased lines or satellite communication.
• LAN: Small area, high-speed connectivity, uses Ethernet or Wi-Fi for communication.
3. Interesting Fact:
• The Internet, the largest WAN, connects millions of networks and billions of devices worldwide.