What feature do coaxial cables offer?

Coaxial cables are specifically designed to carry high-frequency signals effectively, making them suitable for a range of applications, including internet connectivity and cable television. The construction of coaxial cables, which includes a central conductor surrounded by an insulating layer and an outer conductor, allows them to minimize signal loss and maintain integrity over distances. This design contributes to their capability of handling high-frequency signals with reduced interference compared to other types of cables.

The choice emphasizing user access control does not pertain to the physical characteristics or functionalities of coaxial cables. Similarly, stating that coaxial cables are ideal solely for short-distance communication overlooks their effectiveness in longer runs, as they can carry high-frequency signals across considerable distances due to their shielding and construction. Lastly, while coaxial cables may be used in telephone applications, they are not exclusively for that purpose; their primary function has been in high-frequency data and video transmission. Thus, the emphasis on their proficiency in high-frequency data transmission correctly highlights a key feature of coaxial cables.