Which of the following methods can be used for MA5600T/MA5680T board reset test?

• A.All of the above
• B.use a command "board reset" to reset service board. Check whether the business board returns to normal after a reset
• C.Hot-plug boards, check whether the board return to normal after a reset
• D.Press the RESET button on the main board's handle bar, forced to reset the main control board. To observe whether the control board return to normal after a reset

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About ATM network, which of the following description is not correct?

• A.Support fixed-length exchange
• B.To ensure all kinds of business' quality of service performance metrics (QOS)
• C.Work at the network layer of the OSI model
• D.Reduce the processing time of intermediate node, to support high-speed transmission

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(single) Is the following description correct? The DC upgrade tool requires the license. If there is no license, the default can be 30 concurrently. If there is a license, the maximum can be 60 concurrent.

• A.False
• B.True

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MA5600 main control board (SCU) repeatedly restart, impossible because of what?

• A.Loop Network Users
• B.main control board host software problems
• C.main control board component damage
• D.Data configuration error

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(single) The following description of the MA5680T GPBD board, which is wrong?

• A.Supports Class B+ and Class C+ optical modules.
• B.Support high temperature automatic shutdown
• C.Support 8 GPON SFP interfaces
• D.Supports a maximum 1:64 split ratio.

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