1. What is unique about WDM - PON ?: WDM-PON deployed in a greenfield
system allows each subscriber to get their own designated wavelength.
2. What is the main benefit of deploying WDM technology?: It will increase the
capacity of the existing fiber networks tenfold without adding any more fiber...
Field tech 2-3 Final
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1. What is unique about WDM - PON ?: WDM-PON deployed in a greenfield
system allows each subscriber to get their own designated wavelength.
2. What is the main benefit of deploying WDM technology?: It will increase the
capacity of the existing fiber networks tenfold without adding any more fiber.
3. How are optical splitters used in the forward path?: As passive branching
devices that divide an optical signal across multiple output fibers.
4. What is the purpose of a fiber demarcation box?: It provides a safe place to
splice, split, distribute, store, and cross-connect fiber optics.
5. What is the purpose of the MST?: It provides access to connect fiber-optic cable
drops from the customer premises to the network.
6. What is the one main function of the FDH?: The FDH provides effective fiber
management by grouping
splitters into local serving areas
7. Which PON element uses patch panels?: ODN
8. Which type of fiber topology used in a PON places the PON
splitters at the headend while providing one designated fiber
for every customer premise?: Home-Run
9. What are the three categories of the fiber-optic cable used to identify the
location of the fiber in the network?: Trunk, branch, and drop.
10. What is the difference between the FTTN and FTTC
topologies?: An FTC is allowed a smaller number of RF amplifiers between
the optical fiber and the customer premises.
11. What is the purpose of the SDU?: It provides surge protection, a test jack,
circuit protection, wiring management, and fiber termination.
12. What are the advantages of loose buffer tube fiber?: It offers the best
protection for the fibers under high pulling tension and moisture with its fiber-coated
gel.
13. What is an ONU/ONT?: It is a device that converts light from fiber to RF for
coaxial
distribution into the home.
14. What are the characteristics of ITU-T G.657 BIF?: It is flexible for installation
in small spaces and has a small bend
radius of 7.5 mm or 10 mm.
15. What le true about using a premade fiber-optic pigtail for
splicing to patch panels or terminal equipment?: It is faster and more rellable
than installing eonnectors in the
field.
16. What is the proper way to handle fiber once it is spliced?: At the heat-shrink
protective sleeve that has a steel bar inside it.
, Field tech 2-3 Final
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17. What is the purpose of the ground block?: To protect fragile electronics like
TV's and STBs from damaging lightning strikes and power surges.
18. In a PON FTTx network, which OSP device contains fiber test
points that will minimize service disruption to customers?: FDH (Fiber Distrib-
ution Hub)
19. What parameter is critical in an OTDR when testing a PON with
significant splitters losses?: High Dynamic Range
20. What is the best approach to repairing an aerial fiber-optic
drop cable for FTTx applications?: Replace the entire section of fiber drop cable.
21. (-25) + (42) + (-62) + (20) =?: -25
22. (17) x (-19) =?: -323
23. -17-(-34)=: 17
24. -49 ÷ -7?: 7
25. (20) ÷ (-4) + (-2) x (-10) - (-2) x (7) =?: 29
26. 3 6/9 + 6 1/3 + 9 5/9=: 19 5/9
27. 7 3/8 ÷7 1/4=: 1. 1/58
28. 8.13 X 0.123 =?: 0.99999
29. 0.5349 ÷ 0.1420?: 3.7669014
30. 67.84 + 81.786 + 4281.98 = ?: 4,431.606
31. 0.00004= ——- × 10 to the power of ——?: 4,-5
32. What is the square of 7?: 49
33. Which of the statements is true of axioms?: When A = C and B = C, then A
= B because both are equal to C,
which supports the axiom: Quantities equal to the same quantity
are equal to each other.
34. Simplify and solve the equation: If E = IR, then | =?: E/R
35. What is the square root of 81?: 9
36. 0.00004= —— × 10 to the power of —— ?: 4,-4
37. (83 × 10^ 6) + (27 × 10^7) = ?: 353 × 10^6
38. (480 × 10^-5) divided by (60 x 10^-3) = ?: 8 × 10^-2
39. (250 x 10^-6) - (7 x 10^-5) = ?: 180 x 10^-6
40. (75 × 10^3) + (25 x 10^4) =?: 32.5 x 10^4
41. (10 x 103) + (26 x 104) = ?: 270 x 10^3
42. Why should you take the time to take notes
and accurately record data at each job
location?: Notes and recorded data are tools that can help you accurately remem-
ber events at a site that can help you determine a plan of action or evaluate the
decisions you made.
, Field tech 2-3 Final
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43. You are at a customer's home, and you are
asking the customer whether the problem is
intermittent or constant. Which steps are
you using from the six-step troubleshooting
process?: Identify the problem
44. Which technique can be useful in helping others understand
your emotional state and in providing them with direction
around how to help you restore balance?: Feel, Felt, Found technique.
45. Which of the following best describes stereotyped thinking?: Presuming
that all members of a group have certain characteristics.
46. The attribute of being "active" as a critical thinker means: You observe and
take notes relevant to the issue.
47. It is essential to pay attention to warning signs of stress
overload. Poor attitude is one of the behaviors that may
indicate that you are overstressed. What are the symptoms of
poor attitude behavior?: A significant change in attitude with a noticeable move-
ment toward negative, hostile, cynical, or paranoid thoughts
48. You are at a customer's home, and you believe you have
solved the problem. When you check to ensure the resolution
did not introduce any new problems, which step are you using
from the six-step troubleshooting process?: Verify the solution
49. To break the habit of a negative self-talk cycle: Tell yourself "not now" and
move onto a positive thought whenever negative thoughts occur.
50. By taking control of the expectations you have, you are: More likely to
improve your motivation and be a better problem solver.
51. Which of the following statements describes creative
problem-solving?: Thinking outside of the box and looking at problems from a fresh
perspective.
52. What is done to ensure equal power in all
channels in a network with analog and digital
modulation channels?: Operate the analog TV channels at higher amplitude level
than the QAM channels
53. What does a set-top box (STB) diagnostic page of a quadrature amplitude
modulation (QAM) channel showing signal-to-noise ratio (SNR) near or below
30 dB indicate?: The QAM channel quality is on the edge for reliable reception, and
the source of the problem is likely in the distribution network or customer premises.
54. Which of the following characterizes the successful
troubleshooter?: Someone with an inquisitive and relentless desire to solve and fix
problems.
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