BICSI Technician Practice Questions - BICSI Technician (TECH) Certification Exam

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A technician is reading an OTDR trace and notices a large reflective event followed by a gradual increase in signal level. What does this pattern most likely indicate?

A properly spliced fiber junction A connector with excessive return loss A gainer caused by mode field diameter mismatch between spliced fibers End of fiber reflection

Correct Answer:

A gainer caused by mode field diameter mismatch between spliced fibers

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