REP 1- REP 2 EXAM QUESTIONS QUESTIONS |
TESTED AND PROVEN ANSWERS | LATEST UPDATE
2024/2025 100% (GRADE A+)
When light strikes a medium at an angle less than the critical angle, what happens to the light?
Ans>> It is reflected
In a fiber optic cable, what is the purpose of the cladding?
Ans>> To guide the light down the fiber
You are planning a fiber optic network and want to amplify the signal so you can send it farther
into the field. At which wavelength must the laser emit?
Ans>> 1550 nm
It is important to follow safety procedures when installing and handling fiber optic cable. What
should you use to pick up fiber pieces after you splice a cable?
Ans>> Tweezers
1
,You are doing an aerial installation of fiber optic cable. When you survey the installation path,
you see that the path runs near several short outbuildings and over a series of hedges. Which
installation method should you use?
Ans>> The pull in method
Poor performance in the fiber optic network leads you to believe that there is a fault in the fiber
optic cable and you want to test a section of the network with an optical time domain
reflectometer OTDR, How should you connect the OTDR to the fiber optic cable?
Ans>> With an optical mechanical splice
As you prepare to set up the fiber optic network, you realize you need a coupler that will allow
any of its ports to be used as either input or output. Which coupler should you choose?
Ans>> A reflective star coupler
As cable companies have expanded their use of fiber optic cable, they have also brought it
closer to the customer premises, increasing the bandwidth available to customers. Which answer
below represents the progression of fiber optic network architecture?
Ans>> Fiber to the feeder *FTTF* - Fiber to the neighborhood *FTTN* - Fiber to the curb *FTTC*
- and Fiber to the home *FTTH*
2
, Why is the broadband cable industry developing its own passive optical network (PON) standard
instead of using standards already developed by the International Telecommunication Union (ITU)
and the Institute of Electrical and Electronics Engineers (IEEE)
Ans>> The industry has invested a lot of money in HFC Networks, Data Over Cable Service
Interface Specification, and other systems and devices that are still currently being used, but they
are not compatible with ITU and IEEE PON standards.
What serves as an amplifier in fiber optic networks, allowing light signals to travel farther while
retaining signal strength?
Ans>> EDFA, An erbium-doped fiber amplifier
What is the name of the group that established standards for the television industry, ensuring a
single system would deliver consistent service across the nation?
Ans>> The National Television System Committee (NTSC)
What signal modulation technique do cable operators use to transport digital television signals
through the cable network?
Ans>> QAM Quadrature Amplitude Modulation
3
TESTED AND PROVEN ANSWERS | LATEST UPDATE
2024/2025 100% (GRADE A+)
When light strikes a medium at an angle less than the critical angle, what happens to the light?
Ans>> It is reflected
In a fiber optic cable, what is the purpose of the cladding?
Ans>> To guide the light down the fiber
You are planning a fiber optic network and want to amplify the signal so you can send it farther
into the field. At which wavelength must the laser emit?
Ans>> 1550 nm
It is important to follow safety procedures when installing and handling fiber optic cable. What
should you use to pick up fiber pieces after you splice a cable?
Ans>> Tweezers
1
,You are doing an aerial installation of fiber optic cable. When you survey the installation path,
you see that the path runs near several short outbuildings and over a series of hedges. Which
installation method should you use?
Ans>> The pull in method
Poor performance in the fiber optic network leads you to believe that there is a fault in the fiber
optic cable and you want to test a section of the network with an optical time domain
reflectometer OTDR, How should you connect the OTDR to the fiber optic cable?
Ans>> With an optical mechanical splice
As you prepare to set up the fiber optic network, you realize you need a coupler that will allow
any of its ports to be used as either input or output. Which coupler should you choose?
Ans>> A reflective star coupler
As cable companies have expanded their use of fiber optic cable, they have also brought it
closer to the customer premises, increasing the bandwidth available to customers. Which answer
below represents the progression of fiber optic network architecture?
Ans>> Fiber to the feeder *FTTF* - Fiber to the neighborhood *FTTN* - Fiber to the curb *FTTC*
- and Fiber to the home *FTTH*
2
, Why is the broadband cable industry developing its own passive optical network (PON) standard
instead of using standards already developed by the International Telecommunication Union (ITU)
and the Institute of Electrical and Electronics Engineers (IEEE)
Ans>> The industry has invested a lot of money in HFC Networks, Data Over Cable Service
Interface Specification, and other systems and devices that are still currently being used, but they
are not compatible with ITU and IEEE PON standards.
What serves as an amplifier in fiber optic networks, allowing light signals to travel farther while
retaining signal strength?
Ans>> EDFA, An erbium-doped fiber amplifier
What is the name of the group that established standards for the television industry, ensuring a
single system would deliver consistent service across the nation?
Ans>> The National Television System Committee (NTSC)
What signal modulation technique do cable operators use to transport digital television signals
through the cable network?
Ans>> QAM Quadrature Amplitude Modulation
3
