Which of the following options are the storage types of HUAWEI CLOUD OBS? (Multiple choice)

• A.High frequency storage
• B.Standard storage
• C.Archive storage
• D.Low frequency storage

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Which of the following options does not belong to the framework of the LiteOS operating system?

• A.Interconnection framework
• B.Security framework
• C.Kernel
• D.Multi-sensing framework

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Which of the following are the key features of Huawei Cloud Distributed Database Middleware DDM Service? (Multiple Choice)

• A.Can withstand PB-level data volume, million-level concurrency, ten times as much as a single-machine database connection
• B.Compatible with SQL syntax
• C.The cluster is highly available and can automatically recover from failures in seconds
• D.Uninterrupted business, automatic horizontal splitting and smooth expansion

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Which of the following scenarios can the voice assistant be applied to? (Multiple choice)

• A.Smart home control
• B.Intelligent large screen and other intelligent body control
• C.Bicycle control
• D.Robot control

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The value of blockchain is to build trust between organizations that do not trust each other, reduce transaction costs, improve transaction efficiency, and promote mutual trust. Which of the following descriptions about the blockchain is wrong?

• A.Blockchain is a versatile technology that can replace databases and the Internet.
• B.Blockchain value: promote trust, reduce transaction costs, and improve efficiency
• C.HUAWEI CLOUD blockchain platform BCS is open, easy to use, efficient, and secure
• D.Blockchain features: distributed ledger, written into the ledger through multi-party consensus, cannot be tampered, traceable, open and transparent

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