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Q: 1
Which of the following statements about the EFS4 board are correct? (Multiple choice).
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Q: 2
If the overhead bytes pass through two plugged backplane buses, then the two slots are called paired slots that enable automatic transparent transfer of overhead bytes, such as (), () and (). Even if the SCC on the local network element The board is offline, which can also improve msP switching performance and protect DCC communication with other network elements. (Multi-quality selection).
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Q: 3
What of the following operations may interrupt the network element service? (Multiple choice).
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Q: 4
A light wave has two independent and orthogonally polarized modes on the plane perpendicular to the transmission direction, which are generally called X polarization and Y polarization respectively. Using this property of optical signals, the polarization multiplexing separately modulates optical signals on the two orthogonal polarizations.
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Q: 5
Which of the following is not a nonlinear effect?
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Q: 6
Which of the following is the default WTR time for MSP switching?
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Q: 7
Which of the following local maintenance endpoints can be used to manage MSTP devices?
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Q: 8
Which of the following are the main advantages of SDH?
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Q: 9
When performing fiber cut-off test on an ordinary MSP ring, which of the following alarms will be reported? (Multiple choice).
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Q: 10
Which of the following is the main advantage of SDH? (Multiple choice).
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Question 1 of 20 · Page 1 / 2

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