Fiber Install and Activation UPDATED ACTUAL Questions And Correct
Answers
C
Terms in this set (140)
Which standards organization is considered to be the The International Telecommunications Union (ITU)
creator of the worlds' most recognized communications
standards, known as "recommendations"?
In which component in a fiber-optics communication The optical transmitter
system do changes to the intensity of the optical signal
occur?
What is a drawback of using Fabry-Perot (F-P)lasers in The emission of a number of discrete wavelengths or side modes.
high-speed data (HSD) networks?
Why are laser diodes most effective when coupled to Its high coupled power, directionality, and speed.
singlemode fiber?
What are the factors that contribute to an optical Noise, responsivity, response time, linear response, back reflection, optical
receiver's sensitivity? detector.
What is a positive-intrinsic-negative (PIN) diode? An optical detector with current flow that is linear to the intensity of light photons,
with one electron/hole pair created for every absorbed photon until saturation.
What does the amplification process in an avalanche Noise
photodiode (APD) introduce into the electrical output of
an optical detector?
What function does the detector in an optical receiver Conversion of an optical carrier to an electrical signal, and demodulation of the
perform? modulated optical carrier.
What happens if the optical signal exceeds the maximum Nonlinear operation resulting in distortion, data errors, and signal loss.
specified input power into a photodetector?
, What is a characteristic of light in a laser beam? The laser beam consists of a limited range of wavelengths (monochromatic), with
all light waves in phase (coherent light).
Monitoring the status of optical nodes Involves the use of a node transponder that continuously monitors a number of
critical functions.
Digital return path transmissions Use dense wavelength division multiplexing (DWDM) digital return transmitters in
hub-to-headend architectures.
What is channel bonding? A 3.0 revision to DOCSIS that significantly increases upstream and downstream
transport data rates.
What is MPEG? A universally accepted standard for digital television, first released in 1992.
Which of the following is true about optical nodes? They contain four main sections: the optical receiver, the RF amplifier module, the
reverse optical transmitter, and the DC power supply.
Internet protocol telephony systems in broadband cable Require a call management server, media gateway, signaling gateway, billing
networks system, and CMTS.
In a centralized server video-on-demand architecture The number of servers needed for video content storage is smaller than in the
distributed server architecture.
Which of the following statements about local ad Local ad insertion is performed usually by a video server.
insertion is true?
In regard to providing high-speed data service, The CMTS can provide a data transfer rate up to 38 Mbps, using 256-QAM in a
single 6Mhz channel.
Which of the following is true about the SONET SONET is the North American standard used for telephony applications.
transmission standard?
Why was the zero-dispersion point in single-mode fiber To take advantage of the low intrinsic absorption and lower attenuation at 1550
moved to 1,550 nm? nm in single-mode fiber
What type of single-mode fiber is intended for fiber-to- The ITU-T G.657 bend-insensitive fiber (BIF)
the-home installations?
What are the primary causes of intrinsic loss in single- Material absorption and Rayleigh scattering.
mode fiber?
The phenomenon, total internal reflection, is what The difference in refractive indexes, between cladding and core, causes light to
enables an optical fiber to guide light. What characteristic be reflected off the cladding and back into the core along the optical fiber.
of optical fiber causes total internal reflection?
Where would you expect Fresnel reflections to occur in a At connections and mechanical splices where the signal source is entering or
fiber-optic network? exiting the cable.
Chromatic dispersion is a combination of which two Material and waveguide dispersion.
dispersions?
Answers
C
Terms in this set (140)
Which standards organization is considered to be the The International Telecommunications Union (ITU)
creator of the worlds' most recognized communications
standards, known as "recommendations"?
In which component in a fiber-optics communication The optical transmitter
system do changes to the intensity of the optical signal
occur?
What is a drawback of using Fabry-Perot (F-P)lasers in The emission of a number of discrete wavelengths or side modes.
high-speed data (HSD) networks?
Why are laser diodes most effective when coupled to Its high coupled power, directionality, and speed.
singlemode fiber?
What are the factors that contribute to an optical Noise, responsivity, response time, linear response, back reflection, optical
receiver's sensitivity? detector.
What is a positive-intrinsic-negative (PIN) diode? An optical detector with current flow that is linear to the intensity of light photons,
with one electron/hole pair created for every absorbed photon until saturation.
What does the amplification process in an avalanche Noise
photodiode (APD) introduce into the electrical output of
an optical detector?
What function does the detector in an optical receiver Conversion of an optical carrier to an electrical signal, and demodulation of the
perform? modulated optical carrier.
What happens if the optical signal exceeds the maximum Nonlinear operation resulting in distortion, data errors, and signal loss.
specified input power into a photodetector?
, What is a characteristic of light in a laser beam? The laser beam consists of a limited range of wavelengths (monochromatic), with
all light waves in phase (coherent light).
Monitoring the status of optical nodes Involves the use of a node transponder that continuously monitors a number of
critical functions.
Digital return path transmissions Use dense wavelength division multiplexing (DWDM) digital return transmitters in
hub-to-headend architectures.
What is channel bonding? A 3.0 revision to DOCSIS that significantly increases upstream and downstream
transport data rates.
What is MPEG? A universally accepted standard for digital television, first released in 1992.
Which of the following is true about optical nodes? They contain four main sections: the optical receiver, the RF amplifier module, the
reverse optical transmitter, and the DC power supply.
Internet protocol telephony systems in broadband cable Require a call management server, media gateway, signaling gateway, billing
networks system, and CMTS.
In a centralized server video-on-demand architecture The number of servers needed for video content storage is smaller than in the
distributed server architecture.
Which of the following statements about local ad Local ad insertion is performed usually by a video server.
insertion is true?
In regard to providing high-speed data service, The CMTS can provide a data transfer rate up to 38 Mbps, using 256-QAM in a
single 6Mhz channel.
Which of the following is true about the SONET SONET is the North American standard used for telephony applications.
transmission standard?
Why was the zero-dispersion point in single-mode fiber To take advantage of the low intrinsic absorption and lower attenuation at 1550
moved to 1,550 nm? nm in single-mode fiber
What type of single-mode fiber is intended for fiber-to- The ITU-T G.657 bend-insensitive fiber (BIF)
the-home installations?
What are the primary causes of intrinsic loss in single- Material absorption and Rayleigh scattering.
mode fiber?
The phenomenon, total internal reflection, is what The difference in refractive indexes, between cladding and core, causes light to
enables an optical fiber to guide light. What characteristic be reflected off the cladding and back into the core along the optical fiber.
of optical fiber causes total internal reflection?
Where would you expect Fresnel reflections to occur in a At connections and mechanical splices where the signal source is entering or
fiber-optic network? exiting the cable.
Chromatic dispersion is a combination of which two Material and waveguide dispersion.
dispersions?
