The answer is to increase the number of parallel streams in the Backint configuration, as the most likely cause of slow SAP HANA Backint performance on AWS is an insufficient stream count. Backint for SAP HANA uses multiple concurrent streams to upload backup data to Amazon S3; when too few streams are configured, the backup cannot saturate the available network bandwidth—even on an m5.24xlarge instance with 25 Gbps networking—resulting in throughput as low as 200 MB/s instead of the expected multi-GB/s rates. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding that Backint throughput is limited by stream parallelism, not by instance or network capacity—a common trap is to blame S3 performance or instance type. Remember the memory tip: “Streams fill the pipe”—more parallel streams equal higher throughput, so always check the Backint configuration before tuning network or storage.
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.
An SAP HANA system on AWS is experiencing slow backup performance when using Backint to Amazon S3. The backup throughput is only 200 MB/s. The environment uses an m5.24xlarge instance with 25 Gbps network. What is the most likely cause and solution?
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 Backint agent is configured with too few parallel streams. Increase the number of streams in the Backint configuration.
The most likely cause is that the Backint agent is configured with too few parallel streams. Backint for SAP HANA on AWS uses multiple concurrent streams to upload backup data to S3; if the stream count is too low, it cannot saturate the available network bandwidth, resulting in throughput far below the instance's 25 Gbps capacity. Increasing the number of parallel streams in the Backint configuration allows the backup to fully utilize the network and achieve higher throughput.
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 network bandwidth is insufficient. Enable S3 Transfer Acceleration.
Why it's wrong here
Network is adequate; acceleration may not help.
✗
The EBS volumes are too slow. Use instance store volumes for temporary storage.
Why it's wrong here
Not relevant to Backint throughput.
✗
The S3 bucket is not using multipart upload. Enable multipart upload on the bucket.
Why it's wrong here
Backint uses multipart upload automatically.
✓
The Backint agent is configured with too few parallel streams. Increase the number of streams in the Backint configuration.
Why this is correct
More streams increase parallelism and throughput.
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.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may assume network bandwidth or storage I/O is the bottleneck, when in fact the Backint agent's parallel stream count is a common misconfiguration that limits throughput despite ample infrastructure resources.
Detailed technical explanation
How to think about this question
Backint for SAP HANA on AWS uses a configurable parameter, 'parallel_streams', which controls the number of concurrent TCP connections to S3. Each stream typically achieves around 50-100 MB/s depending on latency and instance type; with the default of 4 streams, throughput caps at ~400 MB/s, but misconfiguration (e.g., 2 streams) would limit it to ~200 MB/s. The m5.24xlarge's ENA driver and 25 Gbps link can easily handle 20+ streams, so increasing the stream count to 16 or 32 often resolves the bottleneck.
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 Backint agent is configured with too few parallel streams. Increase the number of streams in the Backint configuration. — The most likely cause is that the Backint agent is configured with too few parallel streams. Backint for SAP HANA on AWS uses multiple concurrent streams to upload backup data to S3; if the stream count is too low, it cannot saturate the available network bandwidth, resulting in throughput far below the instance's 25 Gbps capacity. Increasing the number of parallel streams in the Backint configuration allows the backup to fully utilize the network and achieve higher throughput.
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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