Which of the following components is not part of the big data platform?

• A.Yarn
• B.MapReduce
• C.OpenStack
• D.HDFS

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Mount the cloud disk to the elastic cloud server and you can use it directly.

• A.True
• B.False

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Users cannot deploy business applications on elastic cloud server as they would with traditional servers.

• A.True
• B.False

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In the event of disk data loss, how to use the pre-created backup to restore data?

• A.Unmount the disk
• B.Restore the data to the original disk
• C.Create a new disk
• D.Delete

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High availability is not key feature of RDS.

• A.True
• B.False

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