What is the purpose of cladding in fiber-optic cables?
- Cable grounding
- Noise cancellation
- Prevention of light loss
- EMI protection
Explanation: Cladding is the glass that surrounds the core and acts as a mirror. The light pulses propagate down the core, while the cladding reflects the light pulses. This keeps the light pulses contained in the fiber core in a phenomenon known as total internal reflection.
Exam with this question: CCNA 1 ITNv6 Chapter 4: Check Your Understanding
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