FIBER OPTIC TECHNOLOGY: EXAM FOR FOT-OSP CERTIFICATION UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

FIBER OPTIC TECHNOLOGY: EXAM FOR FOT-OSP
CERTIFICATION UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS

Question:
1. What type of light source is typically used with single-mode fiber optic systems?
Answer:
LASER Diode (LD)

Question:
2. What class of LASER is considered to be inherently safe?
Answer:
Class 1

Question:
3. What are the most common wavelengths used with single-mode fiber systems?
Answer:
1310nm, 1550nm

Question:
4. What are the most common wavelengths used with legacy FTTH networks?
Answer:
850nm, 1300nm, 1490nm

Question:
5. The term used to describe the sum of all reflections is:
Answer:
Optical Return Loss

Question:
6. Optical reflections can interfere with the operation of a LASER Diode and degrade performance.
Answer:
True

Question:
7. Given that a 1:2 splitter has a loss of 3dB, what would the loss be for a 1:4 splitter?
Answer:
6dB

Question:
8. What passive component is used to reduce the power of an optical signal at the receiver when the
receiver's photodiode is oversaturated with optical power?
Answer:
Attenuator

, Question:
9. A 'not to exceed' loss budget includes all the attenuation levels for which of the following?
Answer:
Transmitter power, receiver power, fiber, and splices

Question:
10. The ____________ is the actual light transmission region in a single-mode fiber.
Answer:
Mode Field Diameter

Question:
11. Which of the following wavelengths are most susceptible to losses caused by micro and macrobending
of fibers?
Answer:
1310nm

Question:
12. Chromatic dispersion is actually a combination of what other two types of dispersion?
Answer:
Modal and Material

Question:
13. Which of the following ITU-T standards is considered as 'standard' single-mode (SM) fiber?
Answer:
ITU-T G.652

Question:
14. The ITU-T G.652D standard addresses what is known as _____________ fiber which is optimized for
Coarse Wavelength Division Multiplexing (CWDM) applications.
Answer:
Low Water Peak

Question:
15. Which of the following standards addresses fiber designed for use inside FTTB installations due to its
ability to handle extrinsic stresses?
Answer:
ITU-T G.657

Question:
16. The maximum tension load rating for fiber drop cables during installation per the TIA-568-0.D and
-3.D is:
Answer:
600 lbf (2670N)

Question:
17. When testing the wavelengths in a CWDM system, what is the channel spacing requirement for the test
equipment?