When creating single station optical crossover, an error message "The direction of the cable is wrong selected" appears. The possible reason is?

• A.Device physical fiber connection error
• B.The network element management time is not synchronized.
• C.Lack of logic fiber between boards
• D."Create reverse crossover" is not selected during configuration

Comment: *

Name: *

Email: *

Verification: *

Which of the following description of ODUflex are correct? (Multiple choice)

• A.ODUflex refers to non-fixed bandwidth ODUk technology
• B.The advantage of ODUflex is that users can flexibly configure the capacity of the container according to the size of the service to achieve the most efficient use of railway bandwidth.
• C.Services supported by ODUflex range from 1.25 Gbit/s to 10 Gbit/s
• D.ODUflex bandwidth of per TS subslot is 1.25 Gbit/s

Comment: *

Name: *

Email: *

Verification: *

Which of the following Optical NE types are defined in U2000?

• A.WDM_OEQ
• B.WDM_OTM
• C.WDM OADM
• D.WDM_OLA

Comment: *

Name: *

Email: *

Verification: *

Which of the following statements about Flexible ROADM is incorrect?

• A.Flexible ROADM is compatible with existing networks.
• B.The WSMD2 board supports the Flexible ROADM configuration.
• C.Improves spectrum utilization and meets the requirements for flexible scheduling in the 100 Gbit/s era.
• D.The Flexible grid technology can flexibly set bandwidth and support flexible bandwidth allocation and scheduling.

Comment: *

Name: *

Email: *

Verification: *

The user-oriented interface and the interface for the transport network of the E-Line service are
____ and _____.

• A.UNI, UNI
• B.NN, NNI
• C.NNI, UNI
• D.UNI, NNI

Comment: *

Name: *

Email: *

Verification: *