U2000 can flexibly interconnect with different third-party network administrators through the Northbound Interface (NBI) and provide physical inventory and alarm information for the upper-layer network management.

• A.True
• B.Error

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Which of the following device domains can be managed by U2000? (Multiple choice).

• A.Data communication device
• B.Access device
• C.Wireless device
• D.Transport equipment

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In the case of SNCP, the board selectively receives the service. Therefore, SNCP can protect services on the line.

• A.True
• B.False

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Which of the following statements regarding the sequence of signal flows between the SDH interface and the cross-connecting unit is correct?

• A.SPT<> MS <> MSA<> RST > MSP<> HPT
• B.SPI <> RST <> MST <> MSP<> MSA <> HPT
• C.SPI <> RST <> MSA<> MSP<> MST <> HPT
• D.SPI <> MST<> RST <> MSA <> MSP >HPT

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Which of the following is the frame indicated by the VC-4 J1 byte by the AU pointer of the current frame?

• A.Previous frame
• B.Current framework
• C.Next frame
• D.None of the above

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