CFOT TEST QUESTIONS AND ANSWERS

What is the most basic measurement parameter in fiber optics? Power. What do I use to detect a 2 Kilo Hertz tone in fiber? Fiber Identifier. What do you use to measure optical power? Power Meter. What do we use to introduce a measured loss into link? Attenuator. What do we use to look at the connector tip? A scope or Microscope. what do we use that detects events? OTDR. What do we use to detect cable breaks in short lengths of fiber? Visual Fault Locator (VFL). What has to match in Fiber? Fiber type and Wavelength. What is dBm and what does 0 dBm equal to? Absolute Power and 1 Milliwatt. What is the test done in Fiber before we install it? Continuity Test. What can an OTDR not Measure? Power because the fiber has to be dark (turned off). What is the device that can detect measures of splice loss?