Distinguish between LAN and WAN.

Distinguish between LAN and WAN.

• A. LAN is a local-area network limited to a small area; WAN covers broad geographic distances and may use public networks.
• B. WAN covers broad geographic distances and may use public networks.
• C. LAN and WAN are the same.
• D. WAN uses private networks exclusively.

Answer: (C)

Understanding the geographic scope of networks helps distinguish LANs from WANs. A local-area network is designed for a small area—like a single building or campus—and is typically owned and operated by one organization with fast, private connections. A wide-area network, on the other hand, covers large geographic distances—cities, regions, or countries—and often relies on service providers and public networks to link multiple LANs together, using technologies such as MPLS, leased lines, or VPNs over the Internet. The description that LAN is limited to a small area and WAN spans broad distances and may use public networks best reflects this difference. Saying LAN and WAN are the same ignores their distinct sizes and architectures. Claiming WAN uses private networks exclusively is incorrect, since WANs commonly traverse public networks as well.

Understanding the geographic scope of networks helps distinguish LANs from WANs. A local-area network is designed for a small area—like a single building or campus—and is typically owned and operated by one organization with fast, private connections. A wide-area network, on the other hand, covers large geographic distances—cities, regions, or countries—and often relies on service providers and public networks to link multiple LANs together, using technologies such as MPLS, leased lines, or VPNs over the Internet.

The description that LAN is limited to a small area and WAN spans broad distances and may use public networks best reflects this difference. Saying LAN and WAN are the same ignores their distinct sizes and architectures. Claiming WAN uses private networks exclusively is incorrect, since WANs commonly traverse public networks as well.