Fastest Media of Data Transfer: Fiber Optic

Explanation:
Fiber optic cables are considered the fastest media of data transfer among the given options. This is due to several reasons:

1. Bandwidth:
Fiber optic cables have a much higher bandwidth compared to other options. Bandwidth refers to the amount of data that can be transmitted in a given amount of time. Fiber optic cables have a much larger bandwidth, allowing for faster data transfer rates.

2. Speed of Light:
Fiber optic cables use light to transmit data. Light travels at an incredibly fast speed, allowing for high-speed data transfer. The speed of light in a vacuum is approximately 299,792 kilometers per second, and in fiber optic cables, it travels at around 200,000 kilometers per second. This greatly contributes to the fast data transfer capabilities of fiber optics.

3. Low Attenuation:
Attenuation refers to the loss of signal strength as it travels through a medium. Fiber optic cables have very low attenuation, meaning that the signal can travel over long distances without significant loss of strength. This allows for faster and more reliable data transmission.

4. Immunity to Interference:
Fiber optic cables are immune to electromagnetic interference, which can degrade the quality of the signal. This is because fiber optics use light signals instead of electrical signals. As a result, fiber optic cables can maintain high-speed data transfer even in the presence of other electromagnetic signals.

Conclusion:
In conclusion, fiber optic cables are the fastest media of data transfer among the given options. Their high bandwidth, speed of light transmission, low attenuation, and immunity to interference make them ideal for fast and reliable data transfer.