Database system generally consists of database, database management system and database user and which part?

• A.Business application system
• B.Data logic system
• C.Application system

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What are the types of optical fiber connected optical modules according to the packaging form? (Multiple choice)

• A.SFP+
• B.SFP
• C.SFP28

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Regarding the DBN node in the Huawei hyper-converged database scenario, which of the following statements is wrong?

• A.Support Oracle DB, Microsoft SL Server, IBM DB2, SAP Sybase multiple database software
• B.The underlying operating system of the DBN node is a standard Linux system directly deployed on the physical server.
• C.Fusionsorage adopts a convergent deployment method for DBN nodes to run VBS, MDC and OSD

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The BIOS provides an interactive interface for users to make settings and save the settings in the CMOS RAM, powered by the RTC battery, to ensure that the content in the CMOS RAM is not lost after the device is powered off.

• A.False
• B.True

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The size of the cache is also one of the important indicators of the CPU, and the structure and size of the cache have a great impact on the CPU speed. Which of the following statements about the CPU cache is wrong?

• A.The second-level cache is the second-level cache of the CPU, divided into internal and external chips.
• B.The third-level cache is a cache designed for missed data after reading the second-level cache.
• C.The CPU cache is divided into three levels, the most important of which is the three-level cache, where 80% of the data is stored.
• D.The first level cache is the first level cache of the CPU. It has the highest technical difficulty and manufacturing cost and is divided into data cache and instruction cache.

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