Statement 1: a snapshot of a ThinLUN at creation does not occupy storage capacity. The snapshot of a ThickLUN at creation immediately occupies storage capacity.
Statement 2: When a snapshot of a ThickLUN exists, there is always space available to store changes to the original data.

• A.Statement 1 is true and statement 2 is false.
• B.Statements 1 and 2 are both true.
• C.Statement 1 is false and statement 2 is true.
• D.Both statements 1 and 2 are false.

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What is typical for a DAS solution? (Choose all that apply.)

• A.More scaleable in capacity than a SAN solution.
• B.Sharing of files between DAS solutions is possible via the network.
• C.Consists of a server/host with its locally connected disk drives.
• D.Backups are centrally made on a special backup server.

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In HUAWEI OceanStor V3,what statement is true about SmartThin LUNs?

• A.Space will be reclaimed in all Windows operating systems when data is deleted in the OS.
• B.SmartThin must be enabled on all LUNs of a storage pool.
• C.A Thin LUN cannot be converted into a Thick LUN.
• D.SmartThin LUNs consume just a little storage capacity at the time they are created.

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With the advent of the era of big data, the corresponding storage technology is also undergoing changes.
Is the following statement correct? (Multiple choice)

• A.Traditional NAS, facing PB-level data, complex volume management and unbalanced system capacity allocation, will result in waste of resources
• B.Having large-scale expansion capability is the characteristic of mass storage system
• C.The mass storage system is characterized by a more complicated file system and more complicated management
• D.The file system develops from a local file system to a cluster file system and a distributed file system

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The difference between DAS and SAN, which of the following descriptions is wrong?

• A.SAN redundant networking provides higher reliability
  B, DAS and SAN are all external storage, so storage resource sharing can be easily achieved C, DAS is suitable for small and medium-sized LAN environment with only a few servers
• B.SAN is suitable for high-end storage application environments, such as key databases, centralized storage, large-scale storage, backup and Disaster recovery and other scenarios

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