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Which device creates an OEO conversion？ （）
- A、 amplifier
- B、 attenuator
- C、 regenerator
- D、 light emitter
- E、 optical switch
- F、 optical receiver
- G、 fiber-optic cable
参考答案
更多 “Which device creates an OEO conversion？ （）A、 amplifierB、 attenuatorC、 regeneratorD、 light emitterE、 optical switchF、 optical receiverG、 fiber-optic cable” 相关考题
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考题
Which device creates an OEO conversion?()
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In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?（）A、the signal to noise of the current optical amplifierB、the signal to noise of the previous amplifier or sourceC、the signal to noise introduced by the optical multiplexerD、the accumulated noise to signal ratio of the optical channel
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After installing a new optical drive into a workstation, which of the following will ask for anacknowledgement?（）A、IRQ ManagerB、BIOSC、Device ManagerD、Hardware Compatibility List
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单选题A customer reports the optical drive is no longer responding. Which of the following questionsshould be asked FIRST?（）A
“Did you log in with an administrator account?”B
“Have you been to any inappropriate websites?”C
“What have you changed since the optical drive worked properly?”D
“What has changed since the optical drive worked properly?”
考题
多选题What three in combination are factors that can cause four-wave mixing in fiber-optic cables？（）Alow optical poweBhigh optical powerCfew optical channelsDmany optical channelsElow chromatic dispersionFhigh chromatic dispersionGtoo much power differential in the optical channels
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多选题Which two statements are true about optical networks?（）ASONET and SDH both use time-division multiplexing.BAn optical transport network system uses time-division multiplexing.CSONET and SDH both use wavelength-division multiplexing.DAn optical transport network system uses wavelength-division multiplexing.
考题
单选题Which device creates an OEO conversion？ （）A
amplifierB
attenuatorC
regeneratorD
light emitterE
optical switchF
optical receiverG
fiber-optic cable
考题
单选题In the OSNR model for EDFA amplifiers， SNR OUT = 1/（1/SNR IN + FhvB/P IN ）， what does SNR IN represent？（）A
the signal to noise of the current optical amplifierB
the signal to noise of the previous amplifier or sourceC
the signal to noise introduced by the optical multiplexerD
the accumulated noise to signal ratio of the optical channel
考题
单选题Which device creates an OEO conversion?（）A
amplifierB
attenuatorC
regeneratorD
light emitterE
optical switchF
optical receiverG
fiber-optic cable
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