CompTIA Network+ (N10-008) — Question 279

Two network technicians are installing a fiber-optic link between routers. The technicians used a light meter to verify the correct fibers. However, when they connect the fibers to the router interface, the link does not connect. Which of the following would explain the issue? (Choose two.)

Answer options

• A. They used the wrong type of fiber transceiver.
• B. Incorrect TX/RX polarity exists on the link.
• C. The connection has duplexing configuration issues.
• D. Halogen light fixtures are causing interference.
• E. One of the technicians installed a loopback adapter.
• F. The RSSI was not strong enough on the link.

Correct answer: A, B

Explanation

The correct answer includes A and B because using the wrong type of fiber transceiver can prevent proper communication and incorrect TX/RX polarity will cause the signal not to transmit correctly. Options C, D, E, and F do not directly address the fundamental issues affecting the fiber link connection like the other two options do.