Networking

What is networking?

Networking refers to the practice of connecting computers, devices, and other systems together to share resources, information, and services. It allows different devices to communicate with each other and access shared resources such as files, printers, internet connections, and applications.

What are the different types of network?

1. Local Area Network (LAN):

   • A LAN connects devices within a limited geographical area, such as a home, office, or school.

   • Typically uses Ethernet cables or Wi-Fi to connect devices.

   • LANs are used for sharing resources like files, printers, and internet access among connected devices.

2. Wide Area Network (WAN):

   • A WAN spans a large geographical area, often connecting LANs across cities, countries, or continents.

   • Utilizes public or private telecommunication infrastructure, such as leased lines, satellites, or the internet.

   • WANs enable long-distance communication and access to remote resources and services.

3. Wireless LAN (WLAN):

   • A WLAN uses wireless technology (such as Wi-Fi) to connect devices within a limited area without the need for cables.

   • Commonly used in homes, offices, airports, and public spaces to provide internet access and local network connectivity.

4. Metropolitan Area Network (MAN):

   • A MAN covers a larger geographical area than a LAN but smaller than a WAN, typically serving a city or metropolitan region.

   • Often used by organizations or service providers to connect multiple LANs within a city or campus.

5. Personal Area Network (PAN):

   • A PAN is a network used for connecting devices in close proximity to an individual, typically within a range of a few meters.

   • Examples include Bluetooth connections between smartphones, tablets, and wearable devices.

6. Campus Area Network (CAN):

   • A CAN interconnects LANs within a university campus, corporate campus, or large institution.

   • Designed to provide high-speed communication and resource sharing among different departments or buildings within the campus.

7. Virtual Private Network (VPN):

   • A VPN extends a private network across a public network (such as the internet), allowing users to securely access resources and services as if they were directly connected to the private network.

   • Commonly used for remote work, accessing corporate resources securely, and maintaining privacy while browsing the internet.