The following description of the electrical layer overhead-source function, the correct ones are: (Multiple Choice)

• A.OPUk performs client signal mapping, rate adjustment and rate adaptation in the transmission direction.
• B.OTUk is responsible for calculating BIP-8, writing to SM, GCCO, FAS, MAFS, etc.
• C.ODUkT calculates BIP-8 and writes to TCHi.
• D.ODUkP is responsible for calculating BIP-8, writing PM, GCC1/2 and other overheads.

Comment: *

Name: *

Email: *

Verification: *

Which of the following methods can be used to analyze faults in the NG WDM system?

• A.RMON
• B.Service Signal Flow Analysis
• C.Loopback
• D.Replacement

Comment: *

Name: *

Email: *

Verification: *

What are the common test indicators for Ethernet services? (Multiple Choice)

• A.Back to back
• B.Frame loss rate
• C.Throughput
• D.Delay

Comment: *

Name: *

Email: *

Verification: *

The working mode provided by the line fiber quality monitoring function does not include _____.

• A.Manual mode
• B.Near-end mode
• C.Automatic mode
• D.Intra-office mode

Comment: *

Name: *

Email: *

Verification: *

Which of the following reasons does not cause optical power anomalies?

• A.The pigtail is too large
• B.Equipment temperature is too high
• C.Pigtail connection error
• D.Enable FEC function

Comment: *

Name: *

Email: *

Verification: *