Which of the following statements about block virtualization technology for Huawei storage systems are correct? (Choose all that apply.)

• A.Data reconstruction efficiency improves significantly.
• B.A CKG is the unit used in applying for space, releasing space, and relocating data.
• C.A RAID group is formed in the unit of physical disks.
• D.Data is distributed to all disks, fully leveraging the read/write processing capability of a storage system.

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When does data become information?

• A.When the enterprise understands the meaning of data and extracts the content needed for decision-making
• B.When the data is verified to be correct
• C.When the data has been stored in digital form
• D.When it has been stored in the correct file format

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What is the main purpose of backup battery units (BBU) in storage controllers?

• A.To ensure that the non completed I/O is not lost during power outage.
• B.To provide additional power to storage controller to speed up the I/O.
• C.To maintain the power for clock synchronization.
• D.To power the interface modules.

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Which of the following would best describe a virus?

• A.When an employee goes against the company's ICY code of practice e.g. leaving workstation logged on.
• B.Misuse of information provided by ICT systems for personal or malicious intentions.
• C.A piece of malicious code that is written by programmers and is used to corrupt data and systems.
• D.When individuals or organizations break the law through using computers illegally access a computer system.

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The following are the characteristics of the clustered NAS storage architecture: (multiple choice)

• A.Online expansion
• B.can provide block-level storage
• C.High performance, multiple arrays concurrent I/O
• D.Unified namespace, shared globally

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