Which of the following descriptions about the object storage service OBS is correct? (Multiple choice)

Question

Options

• AUsing the OBS client, users can move files between buckets in the same region
• BUsers can upload objects in an encrypted way, and the data will be encrypted into ciphertext at
• CWhen uploading an object, the storage class of the object inherits the storage class of the bucket
• DSupport reading data in the parallel file system through the cifs protocol

• A
  76% (22)
• D
  24% (7)

Explanation

Options A, B, and C are correct because OBS clients support moving objects between buckets within the same region, OBS allows server-side encryption (SSE) so uploaded data is stored as ciphertext rather than plaintext, and when no storage class is explicitly specified during upload, an object automatically inherits the storage class (Standard, Warm, or Cold) configured on the bucket.

Option D is incorrect because OBS parallel file systems use the NFS (Network File System) protocol for POSIX-compliant access, not CIFS (Common Internet File System), which is a Windows-oriented file-sharing protocol unrelated to OBS parallel file system access.

Memory tip: Think of OBS object behavior as "inherit by default, override when needed" -- objects follow the bucket's encryption and storage class settings unless you explicitly change them at upload time, and access to parallel file systems goes through NFS, not CIFS.

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