Question

which of following network is used to connect different metropolitan cities ​

Answer 1

• WMANs (wireless metropolitan area networks) are used to connect various metropolitan areas.
• WMAN's are used to provide wireless connections between several places within a metropolitan region, such as multiple office buildings in a city or on a university campus, without incurring the expensive costs of laying fibre or leasing lines.
• Infrared light can be used for data transmission across optical lines.
• High-speed Internet access is possible via broadband wireless access networks.