Which of the following is a genuine advantage of using fiber-optic data transmission compared with metallic media?

Introduction:
Fiber-optic cables guide light rather than electrical signals. This physical difference confers multiple benefits over copper for many networking scenarios, especially backbone and high-speed links.

Given Data / Assumptions:

• Comparison targets typical twisted pair or coaxial copper vs optical fiber.
• We consider practical deployments with standard transceivers.
• Security references passive pickup difficulty, not absolute immunity.

Concept / Approach:
Optical transmission avoids electromagnetic radiation that copper conductors emit and receive. Fiber’s bandwidth-distance product is far superior; it supports high rates with low attenuation and immunity to EMI/RFI.

Step-by-Step Solution:

Verification / Alternative check:
Industry adoption of fiber in data centers, metro, and long-haul backbones confirms these advantages, complemented by error performance statistics.

Why Other Options Are Wrong:

• Each individual advantage is valid; therefore, selecting only one understates fiber’s benefits.
• None of the above is false, since all are genuine advantages.

Common Pitfalls:
Believing fiber is impossible to tap (it is simply more difficult); overlooking cost/handling factors when comparing media.

Final Answer:
All of the above.