The answer is a bucket region mismatch between the SAP HANA Backint agent and the Amazon S3 bucket. This failure occurs because the Backint agent uses the AWS SDK to resolve the S3 endpoint based on the region configured in its parameter file or the EC2 instance metadata; when the bucket 'sap-hana-backup-prod' resides in a different AWS region than the EC2 instance, the agent sends requests to the wrong regional endpoint, causing S3 to return a 'bucket does not exist' error despite the bucket name being correct. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding of how Backint integrates with S3 regional endpoints and the importance of explicitly setting the region in the Backint parameter file—a common trap is assuming the bucket name alone is sufficient. Remember the memory tip: region mismatch makes the bucket vanish.
PAS-C01 Design of SAP Workloads on AWS Practice Question
This PAS-C01 practice question tests your understanding of design of sap workloads on aws. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Exhibit
Refer to the exhibit.
```
{
"SAP HANA Backup Configuration": {
"Backint": {
"Bucket": "sap-hana-backup-prod",
"ParallelStreams": 4,
"ChunkSizeMB": 1024,
"Compression": "gzip",
"Encryption": "SSE-S3"
}
}
}
```
An SAP administrator configures SAP HANA backup using Backint as shown in the exhibit. The backup job fails with an error indicating that the bucket 'sap-hana-backup-prod' does not exist. The administrator confirms that the bucket name is correct. What is the most likely cause of the failure?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The bucket is in a different AWS region than the EC2 instance.
The SAP HANA Backint agent communicates with Amazon S3 using the AWS SDK, which resolves the bucket endpoint based on the region configured in the agent or the instance metadata. If the bucket 'sap-hana-backup-prod' exists in a different AWS region than the EC2 instance, the Backint agent will attempt to access the bucket using the wrong regional endpoint, resulting in a 'bucket does not exist' error. This is a common misconfiguration when the Backint parameter file does not explicitly set the correct region or when the instance's default region differs from the bucket's region.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The IAM role used by the instance does not have s3:PutObject permission.
Why it's wrong here
Permission error would show access denied, not bucket not found.
✗
The chunk size is too large for the bucket.
Why it's wrong here
Chunk size does not cause bucket not found error.
✓
The bucket is in a different AWS region than the EC2 instance.
Why this is correct
Backint by default uses the region of the instance; if bucket is in different region, need to specify region.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The bucket has a bucket policy that denies access.
Why it's wrong here
Would show access denied.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume the error message 'bucket does not exist' always means the bucket name is incorrect or the bucket was deleted, overlooking the region mismatch issue that causes the S3 API to return a 404 when the bucket is in a different region.
Trap categories for this question
Command / output trap
Permission error would show access denied, not bucket not found.
Detailed technical explanation
How to think about this question
Under the hood, the SAP HANA Backint for AWS uses the AWS SDK for C++ to make S3 API calls. When the SDK constructs the endpoint URL, it uses the region from the AWS Region environment variable, the instance profile's region, or a hardcoded value in the Backint configuration file. If the region mismatch occurs, the SDK sends the ListBuckets or HeadBucket request to the wrong regional endpoint, which returns a 301 redirect or a 404 'NoSuchBucket' error. In real-world scenarios, this often happens when the SAP HANA instance is in eu-west-1 but the backup bucket was created in us-east-1, and the Backint configuration does not explicitly set the region parameter.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The bucket is in a different AWS region than the EC2 instance. — The SAP HANA Backint agent communicates with Amazon S3 using the AWS SDK, which resolves the bucket endpoint based on the region configured in the agent or the instance metadata. If the bucket 'sap-hana-backup-prod' exists in a different AWS region than the EC2 instance, the Backint agent will attempt to access the bucket using the wrong regional endpoint, resulting in a 'bucket does not exist' error. This is a common misconfiguration when the Backint parameter file does not explicitly set the correct region or when the instance's default region differs from the bucket's region.
What should I do if I get this PAS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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