Which of the following statements about the comparison of UDIMM, RDIMM and LRDIMM are correct? (Multiple choice)

• A.Compared with RDIMM and LRDIMM, the load and power consumption of the memory bus are reduced, and the maximum support capacity of the memory is provided.
• B.UDIMM needs to ensure that the transmission distance between the CPU and each memory particle is equal, so that parallel transmission is effective, and this requires a higher manufacturing process, so UDIMMs are very low in capacity and frequency.
• C.UDIMM unbuffered dual in-line memory module address and control signals directly reach the DRAM chip on the DIMM without buffering, so the price is cheap.
• D.RDIMM supports Bufferered mode and high-performance Registered mode, which is more stable than UDIMM and supports the highest capacity of server memory.

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AzureStack is an extension of Microsoft's public cloud platform Azure and is Microsoft's hybrid cloud solution.

• A.True
• B.False

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Network cards are classified according to the protocol type, what are they divided into? (Multiple choice)

• A.Ethernet card
• B.FC network card
• C.IB network card

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Regarding the first use of rack and blade networking in the hyper-converged database scenario, which of the following statement is correct? (Multiple choice)

• A.When the blades are deployed, they are assembled through the central frame. When there is no external switch, the maximum support does not exceed 4 frame cascading. If more than 4 frames, external IB switches need to be added.
• B.rack and blade deployment mixing: by a frame E9000 H2289 a minimum of 3 units, up to 16 units
• C.When mixed deployment rack and blade: E9000 chassis supplied to the public 8 10GE Interface, DB nodes are arranged in E9000 chassis.
• D.When the blade configuration deployment: provide a central unified external box 8 10GE interfaces, in principle, DB nodes are configured in a box.

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iBMC uses FDM technology to diagnose and prevent faults. Which of the following statements about the characteristics of FDM is correct? (Multiple choice)

• A.FDM can collect Cache NCE failures and memory controller failures.
• B.FDM can accurately locate faulty components among multiple suspected fault sources.
• C.Diagnose the faulty memory DIMM and give suggestions for handling by de-analyzing the address recorded by the memory controller.
• D.It can detect basic hardware failures, including over-temperature alarms and bus failures.

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