When the cross-connect board is configured with 1+1 hot backup, under normal switching conditions, the replacement of the cross-connect clock board will not affect the packet service.

• A.True
• B.False

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Which of the following are data dumping types on the NMS?

• A.Periodic dumping
• B.Automatic dumping
• C.Overflow dumping
• D.Manual dumping

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The rate of STM-1 is () bit/s.

• A.9*270*1*8000
• B.9*270*1*8000*8
• C.9*270*1*8000*16
• D.9*2708000

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Which of the following alarms did the peer report when a bit error was detected in the B2 byte?

• A.MS-AIS
• B.MS-FEBBE
• C.RS-BBE
• D.MS-BBE

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Select the correct on-demand OAM type based on the description for the blank area.

Correct Answer:

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