PAS-C01 Operations and Maintenance Practice Question
An SAP administrator is restoring an SAP HANA database from a backup stored in Amazon S3. The restore fails with an error indicating that the backup file is corrupt. The backup was created using the SAP HANA BACKUP command with the S3 backint agent. What could cause the backup file to be corrupt?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The multipart upload of the backup file was interrupted and not completed.
When using the SAP HANA backint agent to back up to S3, the backup file is uploaded via multipart upload. If this multipart upload is interrupted and not completed, the resulting object in S3 will be incomplete, causing it to appear corrupt when attempting to restore. Option A is incorrect because S3 Transfer Acceleration improves transfer speed but does not affect file integrity. Option C is incorrect because S3 Versioning creates multiple versions of the same object but does not corrupt data. Option D is incorrect because S3 Cross-Region Replication creates identical copies of the object, so it would not introduce corruption.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
S3 Transfer Acceleration was used during backup.
Why it's wrong here
Transfer Acceleration does not affect data integrity.
- ✓
The multipart upload of the backup file was interrupted and not completed.
Why this is correct
Incomplete multipart upload results in a corrupt object.
- ✗
The S3 bucket has versioning enabled.
Why it's wrong here
Versioning does not corrupt files.
- ✗
The backup was replicated to another AWS Region using S3 Cross-Region Replication.
Why it's wrong here
Replication creates identical copies.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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