The NS4 board features test includes: (Multiple choice)

• A.Center wavelength test
• B.-20dB spectral width test
• C.Receive sensitivity
• D.Side mode suppression ratio

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The following description of the ASDN software structure, the correct ones are: (Multiple Choice)

• A.The management plane mainly refers to upper management such as network management.
• B.The transmission plane refers to the traditional transmission network.
• C.Intelligent optical network consists of three planes
• D.Intelligent software main application management plane

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The following description of the signal flow of the OTM site (OSN 8800 device), which is wrong?

• A.OSC receiving direction: Line-> FIU-> Sc2
• B.Service transmission direction: SDH signals-> LSX-> M40V-> OBU1-> Line
• C.Service transmission direction: SDH signals-> LSX->M40V-> OBU1-> FIU-> Line
• D.Service receiving direction: Line->FIU-> OAU-> M40V-> LSX-> SDH signals

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The following limitations of alarm and performance analysis methods are: (Multiple Choice)

• A.In the case of complex networking, service, and fault information, many alarms and performance events may occur along with the occurrence of faults. Due to too many reports and performance events, maintenance personnel are unable to analyze.
• B.When some faults occur, there may be no obvious alarms or performance events reported, and sometimes no alarms or performance events are found.
• C.Field maintenance personnel cannot understand the current health of the equipment.
• D.The network administrator cannot obtain any alarms, time, and historical alarms of the device.

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The protocols used in ASON are RSVP-TE, CSPF-TE, and LMP.

• A.True
• B.False

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