SSID (Service Set Identifier)
- Definition: A unique name assigned to a wireless network.
- Uses:
- Identification: Helps users recognize and select the correct Wi-Fi network from available options.
- Connection: Required for devices to connect to the specific wireless network; password may be needed for security.
- Customization: Can be changed from the default by the network administrator for better security and personalization.
LAN (Local Area Network)
- Definition: A network that connects devices within a limited geographical area, such as a home, office, or school.
- Uses:
- Resource Sharing: Allows devices (computers, printers, etc.) within the network to share files and resources easily.
- High-Speed Connectivity: Typically provides faster data transfer rates due to close proximity of devices.
- Security: Offers better control over security, as access can be restricted within a small physical area.
- Network Management: Easier to manage and configure than wider networks.
WAN (Wide Area Network)
- Definition: A network that covers a large geographic area, connecting multiple LANs across cities, countries, or globally.
- Uses:
- Long-Distance Communication: Facilitates communication and data transfer between distant locations (e.g., branch offices of a corporation).
- Internet Access: The internet itself is the largest WAN, allowing global connectivity.
- Private Networking: Organizations use private WANs to securely connect remote sites (e.g., via VPNs or leased lines).
- Varied Technologies: Utilizes a range of technologies (fiber optics, satellites, etc.) for data transmission over long distances.