PAS-C01 Migration Practice Question
During the migration of an SAP ERP system to AWS, the SAP application team reports that after migrating the database to Amazon RDS for SAP HANA, batch jobs that previously ran in 2 hours now take 5 hours. The system uses AWS Direct Connect with adequate bandwidth. Which action is most likely to resolve this performance issue?
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
✓
Increase the RDS instance size and storage IOPS.
The performance degradation is likely due to insufficient compute or IOPS capacity on the RDS instance compared to the original on-premises HANA system. Increasing the instance size (more vCPUs and memory) and storage IOPS directly addresses the bottleneck. Multi-AZ (Option A) provides high availability but does not improve performance. Reducing backup retention (Option C) has no impact on query execution. Since Direct Connect bandwidth is adequate (Option D), increasing it would not help. Therefore, Option B is the most effective action.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable Multi-AZ deployment for RDS.
Why it's wrong here
Multi-AZ is for high availability, not performance.
- ✓
Increase the RDS instance size and storage IOPS.
Why this is correct
Larger instance provides more CPU and memory for HANA.
- ✗
Reduce the automated backup retention period.
Why it's wrong here
Backup retention does not affect runtime performance.
- ✗
Increase the Direct Connect bandwidth.
Why it's wrong here
Bandwidth is not the bottleneck if batch jobs are compute-bound.
Visual reference
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 |
Go deeper
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PAS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PAS-C01 exam.