CCNA: Cisco Certified Network Associate — Question 878

What are two facts that differentiate optical-fiber cabling from copper cabling? (Choose two.)

Answer options

• A. It is less expensive when purchasing patch cables.
• B. It carries electrical current further distances for PoE devices.
• C. It provides greater throughput options.
• D. It has a greater sensitivity to changes in temperature and moisture.
• E. It carries signals for longer distances.

Correct answer: C, E

Explanation

The correct answers are C and E because optical-fiber cabling can achieve much higher throughput due to its ability to utilize light for data transmission, and it also supports longer distances without significant signal loss compared to copper cabling. Options A and B incorrectly suggest advantages related to cost and electrical transmission that do not apply to optical-fiber cabling, while option D incorrectly states that optical-fiber is more sensitive to environmental factors.