Which of the following statements is true about satellite Internet service?

Satellite Internet service operates by sending and receiving data via microwave signals between satellites orbiting the Earth and ground-based stations. This technology is essential for providing Internet access, especially in remote and rural areas where traditional cable or DSL options may not be available. The use of microwaves is a fundamental aspect of how satellite communication works due to their ability to travel long distances with minimal interference.

In terms of the other statements, it's important to note that satellite Internet is accessible in both urban and rural settings, but it is not limited to urban areas. Unlimited data plans are often not guaranteed, as many providers impose data caps or throttle speeds after a certain usage threshold. Lastly, satellite service typically requires a subscription plan, so the claim that it does not require a data plan is inaccurate. Thus, the statement regarding microwaves accurately reflects the core technology behind satellite Internet connectivity.