Networking based on Geographical Coverage

Question 1

A … generally covers an area of a few square kilometers.
- The main function is to connect several terminals that are close to each other. (within a family, within one or more buildings, within a campus, for example )
- Technologies used: Ethernet and Wi-Fi

Answer 1

Local Area Network (LAN)

Question 2

A … is large-sized LAN, requiring high costs but can provide a higher transmission rate. It improves the transmission media in LANs and expands the access scope of LANs (able to cover a university campus or city)

• The main function is to connect hosts, databases, and LANs at different locations in the same city.
• Technologies used: Ethernet (10 Gbit/s or 100 Gbit/s) and WiMAX

Answer 2

Metropolitan Area Network

Question 3

A … generally covers an area of several kilometers or larger (thousands of kilometers for example)

• It is mainly used to connect several LANs or MANs that are far from each other. (for example, across cities or countries. Telecom operators’ communication lines use HDLC and PPP

Answer 3

Wide Area Network (WAN)