Which of the following is the main control board of the UA5000 high-density system?

• A.IPMB
• B.TSSB
• C.PVMB
• D.PWX

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Is the following description correct? The process of voice fault location can generally be divided into: troubleshooting the external device fault, locating the fault to the specific device, and locating the fault to the board.

• A.True
• B.False

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Is the following description correct? Can test engineers use SmartKit NSE2700 Inspector on site to improve the efficiency of ADSL port activation?

• A.True
• B.False

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VLAN conversion on the user side is generally performed on the MA5680T service board. What are the methods for VLAN conversion?

• A.translate
• B.add-double
• C.translate-and-transparent
• D.transparent

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Is the following description correct? In the EPON network, in order to avoid data conflicts and improve network utilization efficiency, the downstream direction adopts TDMA multiple access mode and arbitrates the data transmission of each ONU.

• A.True
• B.False

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