ATT Week 12 (ET) Best Version
Comprehensive Questions
(Frequently Most Tested) with
Verified Answers
WHAT ARE FIBER OPTIC SYSTEMS CAPABLE OF TRANSMITTING? - Answer: DIGITAL AND ANALOG
SIGNALS
WHAT TYPE OF MEASUREMENT IS USED TO IDENTIFY THE QUALITY OF AN ANALOG SYSTEMS SIGNAL
TRANSMISSION? - Answer: SNR
WHAT TYPE OF MEASUREMENT IS TYPICALLY USED TO IDENTIFY THE QUALITY OF A DIGITAL SYSTEM'S
SIGNAL TRANSMISSION? - Answer: BER
WHAT TYPE OF SIGNAL IS TRANSMITTED OVER A FIBER OPTIC CABLE? - Answer: LIGHT
TRANSMITTING A MODULATED SIGNAL THROUGH A FIBER OPTIC CABLE BY VARYING THE LIGHT BEAM IS
CALLED? - Answer: INTENSITY MODULATION
WHAT SIGNAL IS USUALLY TRANSMITTED THROUGH A FIBER OPTIC CABLE BY ENERGIZING AND DE-
ENERGIZING THE LIGHT SOURCE? - Answer: PCM
What does PCM stand for? - Answer: Pulse Code Modulation
HOW TO DETERMINE IF A FIBER OPTIC SYSTEM IS FAULTY? - Answer: COMPARE THE INITIAL INPUT
SIGNAL TO THE FINAL OUTPUT SIGNAL
HOW DO YOU DETERMINE IF A TRANSMITTER IS FAULTY? - Answer: COMPARE THE INITIAL INPUT
SIGNAL WITH THE SIGNAL APPLIED TO THE OPTICAL SOURCE
, HOW DO YOU DETERMINE IF A RECEIVER IS FAULTY? - Answer: COMPARE THE SIGNAL FROM THE
OPTICAL DETECTOR WITH THE FINAL OUTPUT SIGNAL
HOW DO YOU DETERMINE IF A CABLE IS FAULTY? - 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? - Answer: COMPARE OPTICAL LIGHT SOURCE AND
OPTICAL DETECTOR
HOW DO YOU DETERMINE IF A DETECTOR IS FAULTY? - Answer: COMPARE OPTICAL LIGHT SOURCE AND
OPTICAL DETECTOR
WHAT KIND OF LOSS IS DUE TO AN IMPERFECTION OF THE CORE-CLADDING BOUNDARY? - Answer:
MICROBEND
WHAT DO YOU NEED TO TRANSFER A LARGE AMOUNT OF INFORMATION AT A HIGHER BIT RATE WITH
MORE NOISE PER CABLE? - Answer: WIDER BANDWIDTH
WHAT KIND OF OPTICAL FIBER ALLOWS ONLY ONE LIGHT PATH? - Answer: SINGLE
WHAT KIND OF OPTICAL FIBER IS MADE OF SEVERAL CONVERTING LAYERS OF MATERIAL? - Answer:
MULTIMODE GRADED INDEX
WHAT ARE THE CHARACTERISTICS OF OPTICAL POWER? - Answer: WAVELENGTH, SPECTERAL WIDTH,
NUMERICAL APERATURE, RESPONSE TIME, AND OUTPUT POWER
WHAT ARE THE CHARACTERISTICS OF AN OPTICAL DETECTOR? - Answer: RESPONSIVITY, RESPONSE
TIME, NUMERICAL APERATURE, QUANTUM EFFICIENCY, AND DARK CURRENT
WHAT HAPPENS TO THE RESISTANCE OF A PHOTOCELL WHEN THE APPLIED INTENSITY DECREASES? -
Answer: INCREASES
Comprehensive Questions
(Frequently Most Tested) with
Verified Answers
WHAT ARE FIBER OPTIC SYSTEMS CAPABLE OF TRANSMITTING? - Answer: DIGITAL AND ANALOG
SIGNALS
WHAT TYPE OF MEASUREMENT IS USED TO IDENTIFY THE QUALITY OF AN ANALOG SYSTEMS SIGNAL
TRANSMISSION? - Answer: SNR
WHAT TYPE OF MEASUREMENT IS TYPICALLY USED TO IDENTIFY THE QUALITY OF A DIGITAL SYSTEM'S
SIGNAL TRANSMISSION? - Answer: BER
WHAT TYPE OF SIGNAL IS TRANSMITTED OVER A FIBER OPTIC CABLE? - Answer: LIGHT
TRANSMITTING A MODULATED SIGNAL THROUGH A FIBER OPTIC CABLE BY VARYING THE LIGHT BEAM IS
CALLED? - Answer: INTENSITY MODULATION
WHAT SIGNAL IS USUALLY TRANSMITTED THROUGH A FIBER OPTIC CABLE BY ENERGIZING AND DE-
ENERGIZING THE LIGHT SOURCE? - Answer: PCM
What does PCM stand for? - Answer: Pulse Code Modulation
HOW TO DETERMINE IF A FIBER OPTIC SYSTEM IS FAULTY? - Answer: COMPARE THE INITIAL INPUT
SIGNAL TO THE FINAL OUTPUT SIGNAL
HOW DO YOU DETERMINE IF A TRANSMITTER IS FAULTY? - Answer: COMPARE THE INITIAL INPUT
SIGNAL WITH THE SIGNAL APPLIED TO THE OPTICAL SOURCE
, HOW DO YOU DETERMINE IF A RECEIVER IS FAULTY? - Answer: COMPARE THE SIGNAL FROM THE
OPTICAL DETECTOR WITH THE FINAL OUTPUT SIGNAL
HOW DO YOU DETERMINE IF A CABLE IS FAULTY? - 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? - Answer: COMPARE OPTICAL LIGHT SOURCE AND
OPTICAL DETECTOR
HOW DO YOU DETERMINE IF A DETECTOR IS FAULTY? - Answer: COMPARE OPTICAL LIGHT SOURCE AND
OPTICAL DETECTOR
WHAT KIND OF LOSS IS DUE TO AN IMPERFECTION OF THE CORE-CLADDING BOUNDARY? - Answer:
MICROBEND
WHAT DO YOU NEED TO TRANSFER A LARGE AMOUNT OF INFORMATION AT A HIGHER BIT RATE WITH
MORE NOISE PER CABLE? - Answer: WIDER BANDWIDTH
WHAT KIND OF OPTICAL FIBER ALLOWS ONLY ONE LIGHT PATH? - Answer: SINGLE
WHAT KIND OF OPTICAL FIBER IS MADE OF SEVERAL CONVERTING LAYERS OF MATERIAL? - Answer:
MULTIMODE GRADED INDEX
WHAT ARE THE CHARACTERISTICS OF OPTICAL POWER? - Answer: WAVELENGTH, SPECTERAL WIDTH,
NUMERICAL APERATURE, RESPONSE TIME, AND OUTPUT POWER
WHAT ARE THE CHARACTERISTICS OF AN OPTICAL DETECTOR? - Answer: RESPONSIVITY, RESPONSE
TIME, NUMERICAL APERATURE, QUANTUM EFFICIENCY, AND DARK CURRENT
WHAT HAPPENS TO THE RESISTANCE OF A PHOTOCELL WHEN THE APPLIED INTENSITY DECREASES? -
Answer: INCREASES
