1Z0-1072-25 Question 243
Select 2Your team uploads approximately 700 GB of data each night to an Oracle Cloud Infrastructure (OCI) Object Storage bucket. Due to occasional network issues, the uploads sometimes fail, causing entire re-uploads and extending your backup window. You want to configure multipart uploads so that you minimize re-upload overhead when a failure occurs. Which two actions should you take to achieve this goal?
- A
Decrease the default part size so each multipart chunk is smaller, limiting the amount of data re-uploaded on failure
- B
Set the --multipart-upload-threshold parameter to a size larger than your nightly backups
- C
Leverage the OCI CLI --resumable-upload feature to continue where the upload left off if there is a connection drop
- D
Disable integrity checksums to reduce processing overhead during upload retries
Show answer and explanation
Correct answers: A, C
Explanation
To optimize multipart uploads in OCI Object Storage, it is important to balance part size (to minimize re-upload in case of failures) and leverage tooling features that allow resumption of failed uploads. The OCI CLI --resumable-upload parameter is particularly useful for large, long-running uploads, enabling you to resume partial uploads rather than starting fresh. For detailed guidance, refer to the Oracle documentation on 'Using the CLI for Multipart Uploads' and best practices for large data transfers.
- A. Correct.
Correct. Reducing the part size means that if a single part fails, only that smaller chunk is re-uploaded rather than a larger segment or the entire file. This approach is a common best practice for handling intermittent network issues.
- B. Incorrect.
Incorrect. Setting the multipart upload threshold above your entire backup size effectively disables multipart uploads, forcing the upload to occur in a single part. This increases the chance that a failure would require re-upload of the entire 700 GB file.
- C. Correct.
Correct. Using --resumable-upload in the OCI CLI allows the upload to be continued from the point of failure, preventing the need to start over. This feature is specifically designed to handle transient network outages more efficiently.
- D. Incorrect.
Incorrect. Disabling checksums may reduce some CPU overhead but exposes your upload to data integrity issues. Checksums help ensure each part is correctly uploaded. The overhead is typically minimal compared to the benefits of verifying data integrity.