Question

question 9 of 75
a fiber - optic cable consists of four basic components:
using the illustration below, match each illustration label on the left with the correct component name on the right.
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a b c d
central core protective layer cladding plastic sheath
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Explanation:

The central core is the innermost part that carries light. The cladding is the layer around the core which helps in total internal reflection. The protective layer is for safeguarding the inner components. The plastic sheath is the outermost layer for overall protection. From the out - most to the in - most, the order is plastic sheath, protective layer, cladding, central core.

Answer:

A. Plastic sheath
B. Protective layer
C. Cladding
D. Central core