Internet company A purchased a batch of servers to expand the existing distributed storage Ceph. Through which of the following interface, the Ceph upper storage service can call the underlying RADOS?

• A.RBD
• B.Librados
• C.RADOSGW D CephFS

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The execution efficiency of the C/C++ compiled language program running under the Kunpeng architecture is the same as that of the X86 architecture, which is higher than that of interpreted language programs such as Java.

• A.True
• B.False

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Which of the following statements about the configuration principles of database nodes is correct? (Multiple choice)

• A.In the blade form, the database node can be equipped with CH121 V5 or CH242V5 blades.
• B.The database node adopts a flexible configuration method, which can be selected in the configurator parameter interface according to needs.
• C.In the rack form, the database node can be equipped with 1288H V5-8* 2.5'' HDD, 2288H V5-8*2.5'' HDD or 2488H V5-8*2.5'', KunLun9008 V5 server.
• D.The database node of the newly purchased scene is configured with 2pcs by default, and 2pcs or more can be selected. There is no limit to the number of nodes in the expansion scene.

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There are many hard disk interfaces for servers, which is the fastest transmission rate currently?

• A.FC
• B.PCIe ( NVME )
• C.SAS
• D.SCSI

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Which of the following is the semi-custom chip that has solved the deficiencies of custom circuits and overcomes the limited number of gate circuits of the original programmable device?

• A.CPU
• B.GPU
• C.FPGA
• D.ASIC

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