For emergency handling of business interruptions, fault location should be performed as soon as possible, and then the business should be resumed.

• A.TRUE
• B.FALSE

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Which of the following local maintenance terminals can be used to manage MSTP equipment?

• A.U2000 IP LCT
• B.All of the above
• C.U2000 Web LCT
• D.U2000 LCT

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TEM28 is the Ethernet convergence tributary board. Which of the following descriptions about the TEM28 board are correct? (Multiple Choice)

• A.The electrical signal can be output ODU0, ODU1flex, 00U1 or ODU2 signals to the backplane for cross scheduling through operations such as encapsulation mapping and OTN framing.
• B.The TEM28 board supports the L2 switch module and needs to configure the port to VCTRUNK service.
• C.RX1/TX1~RX4/TX4 ports are 10GE optical ports, which can handle 10GE LAN/10GE WAN services. Other interfaces are GE optical ports, GE electrical interfaces or FE electrical ports which can handle GE or FE services.
• D.TEM28 can simultaneously access FE, GE, 10GE LAN and 10GE WAN services through different ports.

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Which of the following description of the evolutionist in the mainstream SDN model in the industry is correct? (Multiple Choice)

• A.Make full use of existing equipment and achieve fast
• B.Device programmable, open northbound API interface
• C.Try to preserve and reuse existing routing protocols and IP network technologies
• D.Control flexibility is moderate and open is not complete

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Which of the following technologies is the main difference between an open DWDM system and an integrated DWDM system?

• A.Optical supervision technology
• B.Wavelength conversion technology
• C.Optical amplification technology
• D.Multiplexing / demultiplexing technology

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