ATT WEEK 12 (ET) *BEST VERSION* Exam Questions With
Correct Answers 100% Verified
What are fiber optic systems capable of transmitting? - correct answer -digital and analog
signals
What type of measurement is used to identify the quality of an analog systems signal
transmission? - correct answer -snr
What type of measurement is typically used to identify the quality of a digital system's signal
transmission? - correct answer -ber
What type of signal is transmitted over a fiber optic cable? - correct answer -light
Transmitting a modulated signal through a fiber optic cable by varying the light beam is called? -
correct answer -intensity modulation
What signal is usually transmitted through a fiber optic cable by energizing and de-energizing
the light source? - correct answer -pcm
What does pcm stand for? - correct answer -pulse code modulation
How to determine if a fiber optic system is faulty? - correct answer -compare the initial input
signal to the final output signal
How do you determine if a transmitter is faulty? - correct answer -compare the initial input
signal with the signal applied to the optical source
, How do you determine if a receiver is faulty? - correct answer -compare the signal from the
optical detector with the final output signal
How do you determine if a cable is faulty? - correct answer -compare the signal applied to the
optical light source with the signal from optical detector
How do you determine if a source is faulty? - correct answer -compare optical light source and
optical detector
How do you determine if a detector is faulty? - correct answer -compare optical light source and
optical detector
What kind of loss is due to an imperfection of the core-cladding boundary? - correct answer -
microbend
What do you need to transfer a large amount of information at a higher bit rate with more noise
per cable? - correct answer -wider bandwidth
What kind of optical fiber allows only one light path? - correct answer -single
What kind of optical fiber is made of several converting layers of material? - correct answer -
multimode graded index
What are the characteristics of optical power? - correct answer -wavelength, specteral width,
numerical aperature, response time, and output power
What are the characteristics of an optical detector? - correct answer -responsivity, response
time, numerical aperature, quantum efficiency, and dark current
Correct Answers 100% Verified
What are fiber optic systems capable of transmitting? - correct answer -digital and analog
signals
What type of measurement is used to identify the quality of an analog systems signal
transmission? - correct answer -snr
What type of measurement is typically used to identify the quality of a digital system's signal
transmission? - correct answer -ber
What type of signal is transmitted over a fiber optic cable? - correct answer -light
Transmitting a modulated signal through a fiber optic cable by varying the light beam is called? -
correct answer -intensity modulation
What signal is usually transmitted through a fiber optic cable by energizing and de-energizing
the light source? - correct answer -pcm
What does pcm stand for? - correct answer -pulse code modulation
How to determine if a fiber optic system is faulty? - correct answer -compare the initial input
signal to the final output signal
How do you determine if a transmitter is faulty? - correct answer -compare the initial input
signal with the signal applied to the optical source
, How do you determine if a receiver is faulty? - correct answer -compare the signal from the
optical detector with the final output signal
How do you determine if a cable is faulty? - correct answer -compare the signal applied to the
optical light source with the signal from optical detector
How do you determine if a source is faulty? - correct answer -compare optical light source and
optical detector
How do you determine if a detector is faulty? - correct answer -compare optical light source and
optical detector
What kind of loss is due to an imperfection of the core-cladding boundary? - correct answer -
microbend
What do you need to transfer a large amount of information at a higher bit rate with more noise
per cable? - correct answer -wider bandwidth
What kind of optical fiber allows only one light path? - correct answer -single
What kind of optical fiber is made of several converting layers of material? - correct answer -
multimode graded index
What are the characteristics of optical power? - correct answer -wavelength, specteral width,
numerical aperature, response time, and output power
What are the characteristics of an optical detector? - correct answer -responsivity, response
time, numerical aperature, quantum efficiency, and dark current
