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1. What uses the 2.4-GHz band and runs at 54 Mbps?: 802.11g
2. What is one reason why broadband cable operators install fiber-optic cable
in stages instead of changing the infrastructure all at once?: Changing the
infrastructure all at once would cause too many service disruptions.
3. What is the difference between the fiber-to-the-node (FTTN) and
fiber-to-the-curb (FTTC) topologies?: An FTTC is allowed a smaller number of
RF amplifiers between the optical fiber and the customer premises.
4. Which of these components is used in a passive optical network (PON)?: -
Optical splitters.
5. Which type of star topology used in a passive optical network (PON) places
the PON splitters into fiber access terminal (FAT) located deep in the network
and closer to the customer premises than the centralized split?: Distributed
star.
6. Which element of a passive optical network (PON) uses a Bragg grating
filter?: Optical line terminal (OLT).
7. Which element of a passive optical network (PON) uses patch panels?: Op-
tical distribution network (ODN).
8. What is it about radio frequency over glass (RFoG) that made broadband
cable operators envision using it to make a seamless transition from the
legacy hybrid fiber/coax (HFC) architecture over to a gigabit-capable passive
optical network (GPON) or Ethernet passive optical network (EPON)?: RFoG
can operate in parallel with GPON or EPON, which eliminates the need for any
downtime during the transition.
9. How are optical splitters used in the forward path?: In the forward path, optical
splitters are used as passive branching devices that divide an optical signal across
multiple output fibers.
10. Which of the following describes a fiber pigtail?: Fiber-optic cable with
pre-connectorized ends.
11. Heat shrink tubing is installed over the fusion-splice to strengthen and
protect it. When should the heat shrink be installed on the fiber?: Before
stripping the plastic coating from the fiber.
12. Which of the following are statements of true 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.
13. Simplify and solve the equation: If E = IR then I = ?: E/R
14. The square of 7 =: 49
15. The square root of 81 =: 9
16. 0.00004 = ______ x 10 to the power of ______.: 4, -5
, NCTI FIELD TECH 2 TO 3 PROGRESSION FINAL EXAM
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17. (75 x 10 to the power of 3) + (25 x 10 to the power of 4) =: 32.5 x 10 to the
power of 4
18. 10 to the power of -3 has a metric prefix of ______.: Milli
19. (480 x 10 to the power of -5) divided by (60 x 10 to the power of -3) =: 8 x 10
to the power of -2
20. (250 x 10 to the power of -6) - (7 x 10 to the power of -5) =: 180 x 10 to the
power of -6
21. (75 × 103) + (25 × 104) =: (*Wrong) 100 × 10^3
22. (-25) + (42) + (-62) + (20) =: -25
23. (17) x (-19) =: -323
24. (-17) - (-34) =: 17
25. -49/-7 =: 7
26. (20) / (-4) + (-2) x (-10) - (-2) x (7) =: 29
27. 3 6/9 + 6 1/3 + 9 5/9 =: 19 5/9
28. 4/7 x 9 4/11 =: 5 27/77
29. 7 3/8 divided by 7 1/4 =: 1 1/58
30. 8.13 X 0.123 =: 0.99999
31. 0.5349 divided by 0.1420 =: 3.7669014
32. Which of the following is a method for controlling expectations?: Identify
the source of emotional overload.
33. Which of the following best describes stereotyped thinking?: Presuming
that all members of a group have certain characteristics.
34. The attribute of being "active" as a critical thinker means: You observe and
take notes relevant to the issue.
35. What kind of reasoning is described as applying a general statement that
you know to be true to a new situation?: Deductive.
36. 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 movement toward negative, hostile, cynical, or paranoid
thoughts
37. You are at a customer's home and you are asking the customer whether
the problem is intermittent or constant. Which step are you using from the
six-step troubleshooting process?: Identifying the problem.
38. 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
remember events at a site that can help you determine a plan of action or evaluate
the decisions you made.