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多选题
Which three technologies are used to reduce chromatic dispersion accumulation in fiber-optic transmission systems？（）
A
PIN photodiodes
B
zero-chirped lasers
C
Erbium-doped fiber amplifiers
D
dispersion compensating fiber
E
dispersion compensating Bragg grating
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更多 “多选题Which three technologies are used to reduce chromatic dispersion accumulation in fiber-optic transmission systems？（）APIN photodiodesBzero-chirped lasersCErbium-doped fiber amplifiersDdispersion compensating fiberEdispersion compensating Bragg grating” 相关考题
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单选题What is the maximum number of CTI ports for an IPCC Expess Standard deployment? （）A
150 B
200 C
300 D
Depends upon how many expansion servers are used E
Depends upon the number of applications configured
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单选题How does weighted random early detection （WRED） prevent packet loss？（）A
increases link capacityB
increases buffer space to accommodate bursts of traffic from delay-sensitive applicationsC
provides prioritized forwarding for drop-sensitive applicationsD
drop lower priority packets before congestion occursE
separates traffic into as many as 64 queues that can be uniquely prioritized
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单选题After the site installation is complete， you should verify the mobility of the VoWLAN device whilewalking the site on an active phone call. Which Cisco WLC or Cisco WCS command is mostbeneficial in determining roaming efficiency？（）A
show {802.11a 802.11b} 2roam statistics B
show client roam-history C
show client tsm 802.11a/b/g D
show client detail E
show client ap-roam-history
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operations assessmentC
security assessmentD
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1 B
2 C
3 D
4 E
5
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cable with 256k uplink /1.4M downlink
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500mgC
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考题
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考题
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考题
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单选题关于抗生素的应用叙述不正确的是（）A
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联合应用抗生素时应有明确的适应证D
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考题
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