Which of the following technologies is utilized for signal transmission over long distances?

The utilization of line drivers is essential for signal transmission over long distances due to their specific design and function. Line drivers are specialized electronic devices that boost the signal strength, allowing it to maintain integrity across long runs of cable. When signals travel long distances, they are susceptible to attenuation, which can degrade the quality of audio and video signals. Line drivers counteract this loss by amplifying the signal before it is sent over extended distances, ensuring that the transmitted data remains clear and coherent at the receiving end.

In contrast, the other technologies listed serve different purposes. Digital switching is primarily focused on managing and routing signals within a system rather than specifically enhancing signal strength for long-distance travel. Amplification generally refers to increasing the power of a signal but may not address specific challenges associated with long-distance transmission such as maintaining signal quality. Compression, on the other hand, reduces the size of data for efficient transmission but does not inherently deal with the physical transmission over distance, which can lead to issues like latency if not managed properly.

Thus, line drivers play a crucial role in ensuring reliable long-distance signal transmission by boosting the signal to overcome the limitations posed by distance.