🧠 EXAM_SIM // COMPTIA_TRAINING
Cert prep for CompTIA A+, Network+, Server+, and Linux+.
Scope:
Fiber
You are interpreting an OTDR (Optical Time-Domain Reflectometer) trace for a degraded 10G single-mode fiber run. The graph displays a sharp, sudden vertical drop without a reflective spike (Fresnel reflection) at the 120-meter mark. What does this signify?
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