Field tech 2-3 Final Exam Questions And
Answers
What is unique about WDM - PON ? - -WDM-PON deployed in a greenfield
system allows each subscriber to get their own designated wavelength.
-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.
-How are optical splitters used in the forward path? - -As passive branching
devices that divide an optical signal across multiple output fibers.
-What is the purpose of a fiber demarcation box? - -It provides a safe place
to splice, split, distribute, store, and cross-connect fiber optics.
-What is the purpose of the MST? - -It provides access to connect fiber-optic
cable drops from the customer premises to the network.
-What is the one main function of the FDH? - -The FDH provides effective
fiber management by grouping
splitters into local serving areas
-Which PON element uses patch panels? - -ODN
-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
-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.
-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.
-What is the purpose of the SDU? - -It provides surge protection, a test jack,
circuit protection, wiring management, and fiber termination.
-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.
, -What is an ONU/ONT? - -It is a device that converts light from fiber to RF
for coaxial
distribution into the home.
-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.
-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.
-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.
-What is the purpose of the ground block? - -To protect fragile electronics
like TV's and STBs from damaging lightning strikes and power surges.
-In a PON FTTx network, which OSP device contains fiber test
points that will minimize service disruption to customers? - -FDH (Fiber
Distribution Hub)
-What parameter is critical in an OTDR when testing a PON with
significant splitters losses? - -High Dynamic Range
-What is the best approach to repairing an aerial fiber-optic
drop cable for FTTx applications? - -Replace the entire section of fiber drop
cable.
-(-25) + (42) + (-62) + (20) =? - --25
-(17) x (-19) =? - --323
--17-(-34)=？ - -17
--49 ÷ -7? - -7
-(20) ÷ (-4) + (-2) x (-10) - (-2) x (7) =? - -29
-3 6/9 + 6 1/3 + 9 5/9= - -19 5/9
-7 3/8 ÷7 1/4= - -1. 1/58
-8.13 X 0.123 =? - -0.99999
, -0.5349 ÷ 0.1420? - -3.7669014
-67.84 + 81.786 + 4281.98 = ? - -4,431.606
-0.00004= ——- × 10 to the power of ——? - -4,-5
-What is the square of 7? - -49
-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.
-Simplify and solve the equation: If E = IR, then | =? - -E/R
-What is the square root of 81? - -9
-0.00004= —— × 10 to the power of —— ? - -4,-4
-(83 × 10^ 6) + (27 × 10^7) = ? - -353 × 10^6
-(480 × 10^-5) divided by (60 x 10^-3) = ? - -8 × 10^-2
-(250 x 10^-6) - (7 x 10^-5) = ? - -180 x 10^-6
-(75 × 10^3) + (25 x 10^4) =? - -32.5 x 10^4
-(10 x 103) + (26 x 104) = ? - -270 x 10^3
-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.
-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
-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.
Answers
What is unique about WDM - PON ? - -WDM-PON deployed in a greenfield
system allows each subscriber to get their own designated wavelength.
-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.
-How are optical splitters used in the forward path? - -As passive branching
devices that divide an optical signal across multiple output fibers.
-What is the purpose of a fiber demarcation box? - -It provides a safe place
to splice, split, distribute, store, and cross-connect fiber optics.
-What is the purpose of the MST? - -It provides access to connect fiber-optic
cable drops from the customer premises to the network.
-What is the one main function of the FDH? - -The FDH provides effective
fiber management by grouping
splitters into local serving areas
-Which PON element uses patch panels? - -ODN
-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
-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.
-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.
-What is the purpose of the SDU? - -It provides surge protection, a test jack,
circuit protection, wiring management, and fiber termination.
-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.
, -What is an ONU/ONT? - -It is a device that converts light from fiber to RF
for coaxial
distribution into the home.
-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.
-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.
-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.
-What is the purpose of the ground block? - -To protect fragile electronics
like TV's and STBs from damaging lightning strikes and power surges.
-In a PON FTTx network, which OSP device contains fiber test
points that will minimize service disruption to customers? - -FDH (Fiber
Distribution Hub)
-What parameter is critical in an OTDR when testing a PON with
significant splitters losses? - -High Dynamic Range
-What is the best approach to repairing an aerial fiber-optic
drop cable for FTTx applications? - -Replace the entire section of fiber drop
cable.
-(-25) + (42) + (-62) + (20) =? - --25
-(17) x (-19) =? - --323
--17-(-34)=？ - -17
--49 ÷ -7? - -7
-(20) ÷ (-4) + (-2) x (-10) - (-2) x (7) =? - -29
-3 6/9 + 6 1/3 + 9 5/9= - -19 5/9
-7 3/8 ÷7 1/4= - -1. 1/58
-8.13 X 0.123 =? - -0.99999
, -0.5349 ÷ 0.1420? - -3.7669014
-67.84 + 81.786 + 4281.98 = ? - -4,431.606
-0.00004= ——- × 10 to the power of ——? - -4,-5
-What is the square of 7? - -49
-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.
-Simplify and solve the equation: If E = IR, then | =? - -E/R
-What is the square root of 81? - -9
-0.00004= —— × 10 to the power of —— ? - -4,-4
-(83 × 10^ 6) + (27 × 10^7) = ? - -353 × 10^6
-(480 × 10^-5) divided by (60 x 10^-3) = ? - -8 × 10^-2
-(250 x 10^-6) - (7 x 10^-5) = ? - -180 x 10^-6
-(75 × 10^3) + (25 x 10^4) =? - -32.5 x 10^4
-(10 x 103) + (26 x 104) = ? - -270 x 10^3
-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.
-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
-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.
