WAN (Wide Area Network)
A wide-area network (WAN) is a computer network that
connects smaller networks, or local-area networks (LANs), across great
distances. Businesses and governments use WANs to connect offices, data
centers, cloud applications, and networked sites.
WANs are essential for several reasons, including:
Communication
WANs allow employees and customers to communicate and
share information across regions and countries.
Access to information
WANs allow employees to access the information they need
to do their job, even when traveling. Students can use WANs to access
library databases and university research.
Sharing information with customers
WANs help organizations share information with customers
and partner organizations.
WANs can use various technologies for links,
including circuit-switched telephone lines, radio wave transmission, and
optical fiber. The Internet is the world's most extensive WAN.
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