Question:
Why are two strands of fiber used for a single fiber optic connection?
- They prevent crosstalk from causing interference on the connection.
- The two strands allow the data to travel for longer distances without degrading.
- They allow for full-duplex connectivity.
- They increase the speed at which the data can travel.
Explanation: Light can only travel in one direction down a single strand of fiber. In order to allow for full-duplex communication two strands of fiber must be connected between each device.
Related exam: 4.7.4 Module Quiz – Physical Layer Answers
Related exam: CCNA 1 v7 Checkpoint Exam: Ethernet Concepts Exam Answers
Related exam: CCNA 1 (v5.1 + v6.0) Chapter 4 Exam Answers
Related exam: Networking Essentials 3.0 Checkpoint Exam: Physical, Data Link, and Network Layers
Related exam: Network Addressing and Basic Troubleshooting: My Knowledge Check Answers
