The following description of the Directioned scenario, which is correct? (Multiple choice)

• A.If the current path needs to be adjusted, you must inbound to adjust the fiber connection of the network.
• B.Directioned scenes are applied to networks that are not ASON.
• C.When the service needs to be adjusted, or the working path is faulty, the optical crossover can be manually configured to implement flexible scheduling of services.
• D.The wavelength carrying the local service can be transmitted to fixed direction.

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The steps that must be performed when configuring the Ethernet private line service carried by the PW are as follows: (Multiple Choice)

• A.Configure MPLS tunnel
• B.Configure QoS
• C.Configure the UNI port
• D.Configure port DCN

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The NS4 board features test includes: (Multiple choice)

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

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When the input optical power of the amplifier at the receiving end OAU is lower than the nominal optical power, which of the following are wrong in the operation?

• A.Improve the sending optical power of the originator
• B.Set the OAU gain so that its output reaches the nominal value
• C.When the input optical power cannot be increased by adjusting the adjustable attenuator, the adjustable attenuation at the input of the amplifier is removed.
• D.Adjust the dimmable fading before the terminating amplifier to increase the input optical power of the amplifier

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The following description of the Flexible ROADM, which is wrong?

• A.Improve spectrum utilization and meet flexible scheduling requirements in the future era of over 100 Gbit/= rate.
• B.Flexible grid technology provides flexible bandwidth settings and flexible bandwidth allocation and scheduling.
• C.WSMD2 board supports F1exible ROADM configuration
• D.DFlexible ROADM is compatible with existing networks

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