Which of the following statements about SmartErase is/are true.
A) SmartErase allows a disk whose data has been erased to be reused after a dab destruction task is completed?
B) SmartErase deletes data, that belongs to a specific LUN, permanently from disks to prevent it from being recovered by unauthorized users using residual data?

• A.Statement A is true and Statement B is false.
• B.Statement A is false and Statement B is true.
• C.Both statements are false.
• D.Both statements are true.

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In Huawei distributed storage, the block service asynchronous remote replication architecture is based on the block service cluster to build an asynchronous replication relationship. Based on the difference data, the data of the master and slave volumes are periodically synchronized. From the data synchronization of the last synchronization cycle completes to the current synchronization starts, all data generated on the master volume will be written to the slave volume during this synchronization.

• A.False
• B.True

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In the VMware environment, the scenarios where VADP cannot be used for backup are ____.

• A.The storage is directly connected to the virtual machine
• B.Thick Disk
• C.VMDK
• D.Thin Disk

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Engineer C completes the installation of Huawei's distributed storage on site, and then powers on to configure big data services.
In the following description of the big data business configuration process, which of the following is the correct order?
1. Create an account
2. Configure the subnet
3. Create a file system
4. Associated File System
5. Create NameNode Zone
6. Create Global Zone

• A.1->3->2->6->5->4
• B.6->5->3->1->2->4
• C.5->3->2->4->1->6
• D.1->2->3->4->5->6

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Which of the following functions can be achieved by the Oceanstor 9000 administrator through the nfollocator feature? (Multiple choice)

• A.Manage and monitor users
• B.Reasonably plan users
• C.Count and view users

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