1 | Page
Field tech 2-3 Final Questions and Correct Answers/
Latest Update / Already Graded
What is unique about WDM - PON ?
Ans: 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?
Ans: 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?
Ans: As passive branching devices that divide an optical signal across multiple
output fibers.
What is the purpose of a fiber demarcation box?
Ans: It provides a safe place to splice, split, distribute, store, and cross-connect
fiber optics.
What is the purpose of the MST?
Ans: 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?
Ans: The FDH provides effective fiber management by grouping
splitters into local serving areas
Which PON element uses patch panels?
© 2025/ 2026 | ® All rights reserved
, 2 | Page
Ans: 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?
Ans: Home-Run
What are the three categories of the fiber-optic cable used to identify the
location of the fiber in the network?
Ans: Trunk, branch, and drop.
What is the difference between the FTTN and FTTC
topologies?
Ans: 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?
Ans: It provides surge protection, a test jack, circuit protection, wiring
management, and fiber termination.
What are the advantages of loose buffer tube fiber?
Ans: It offers the best protection for the fibers under high pulling tension and
moisture with its fiber-coated gel.
What is an ONU/ONT?
© 2025/ 2026 | ® All rights reserved
, 3 | Page
Ans: 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?
Ans: 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?
Ans: It is faster and more rellable than installing eonnectors in the
field.
What is the proper way to handle fiber once it is spliced?
Ans: At the heat-shrink protective sleeve that has a steel bar inside it.
What is the purpose of the ground block?
Ans: 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?
Ans: FDH (Fiber Distribution Hub)
What parameter is critical in an OTDR when testing a PON with
significant splitters losses?
© 2025/ 2026 | ® All rights reserved
, 4 | Page
Ans: High Dynamic Range
What is the best approach to repairing an aerial fiber-optic
drop cable for FTTx applications?
Ans: Replace the entire section of fiber drop cable.
(-25) + (42) + (-62) + (20) =?
Ans: -25
(17) x (-19) =?
Ans: -323
-17-(-34)=？
Ans: 17
-49 ÷ -7?
Ans: 7
(20) ÷ (-4) + (-2) x (-10) - (-2) x (7) =?
Ans: 29
3 6/9 + 6 1/3 + 9 5/9=
Ans: 19 5/9
7 3/8 ÷7 1/4=
© 2025/ 2026 | ® All rights reserved
Field tech 2-3 Final Questions and Correct Answers/
Latest Update / Already Graded
What is unique about WDM - PON ?
Ans: 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?
Ans: 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?
Ans: As passive branching devices that divide an optical signal across multiple
output fibers.
What is the purpose of a fiber demarcation box?
Ans: It provides a safe place to splice, split, distribute, store, and cross-connect
fiber optics.
What is the purpose of the MST?
Ans: 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?
Ans: The FDH provides effective fiber management by grouping
splitters into local serving areas
Which PON element uses patch panels?
© 2025/ 2026 | ® All rights reserved
, 2 | Page
Ans: 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?
Ans: Home-Run
What are the three categories of the fiber-optic cable used to identify the
location of the fiber in the network?
Ans: Trunk, branch, and drop.
What is the difference between the FTTN and FTTC
topologies?
Ans: 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?
Ans: It provides surge protection, a test jack, circuit protection, wiring
management, and fiber termination.
What are the advantages of loose buffer tube fiber?
Ans: It offers the best protection for the fibers under high pulling tension and
moisture with its fiber-coated gel.
What is an ONU/ONT?
© 2025/ 2026 | ® All rights reserved
, 3 | Page
Ans: 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?
Ans: 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?
Ans: It is faster and more rellable than installing eonnectors in the
field.
What is the proper way to handle fiber once it is spliced?
Ans: At the heat-shrink protective sleeve that has a steel bar inside it.
What is the purpose of the ground block?
Ans: 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?
Ans: FDH (Fiber Distribution Hub)
What parameter is critical in an OTDR when testing a PON with
significant splitters losses?
© 2025/ 2026 | ® All rights reserved
, 4 | Page
Ans: High Dynamic Range
What is the best approach to repairing an aerial fiber-optic
drop cable for FTTx applications?
Ans: Replace the entire section of fiber drop cable.
(-25) + (42) + (-62) + (20) =?
Ans: -25
(17) x (-19) =?
Ans: -323
-17-(-34)=？
Ans: 17
-49 ÷ -7?
Ans: 7
(20) ÷ (-4) + (-2) x (-10) - (-2) x (7) =?
Ans: 29
3 6/9 + 6 1/3 + 9 5/9=
Ans: 19 5/9
7 3/8 ÷7 1/4=
© 2025/ 2026 | ® All rights reserved
