Cellular Technologies refer to which form of mobile communication?

• A. Cellular Technologies
• B. Wired Ethernet
• C. Satellite Communications
• D. Infrared Data Association

Answer: (A)

The concept being tested is identifying the form of mobile communication that uses a network of cells and base stations to provide wireless service over a broad area. Cellular technologies are designed for mobility, with coverage divided into cells and frequent handoffs as you move, allowing you to stay connected over long distances. They rely on licensed radio spectrum and infrastructure that supports roaming between cells.

Wired Ethernet is not wireless and requires cables, so it isn’t a form of mobile communication. Satellite communications use satellites and can cover large areas, but they don’t operate as the cellular cell-based networks that hand off users between cells. Infrared Data Association involves very short-range, line-of-sight infrared transfers, which is not suitable for mobile or wide-area coverage.

Therefore, the form of mobile communication described is cellular technologies.