PAS-C01 Operations and Maintenance Practice Question
A company is migrating an SAP system to AWS and needs to ensure high availability for the SAP Central Services (ASCS) instance. Which AWS service is best suited for this?
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
✓
Amazon Route 53 weighted routing policy
None of the provided options is correct for ensuring high availability for SAP ASCS. ASCS requires a cluster manager with shared file systems (e.g., Amazon EFS) and failover mechanisms (e.g., overlay IP or Elastic Network Interface repositioning), which are not represented by any of the options. The current answer, Amazon Route 53 weighted routing policy, alone does not provide true high availability for ASCS as it lacks stateful failover and shared storage coordination.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon RDS Multi-AZ deployment
Why it's wrong here
Incorrect. Amazon RDS Multi-AZ provides high availability for the database layer, not for the ASCS application service itself. ASCS is an application service, not a database.
- ✗
EC2 Auto Scaling group
Why it's wrong here
Incorrect. EC2 Auto Scaling groups are designed for scaling out and in based on load, not for automatic failover of a single instance like ASCS, which typically requires a cluster manager.
- ✓
Amazon Route 53 weighted routing policy
Why this is correct
Correct. Amazon Route 53 weighted routing policy, combined with health checks, can route traffic to multiple ASCS instances and automatically redirect traffic from unhealthy instances, achieving high availability.
- ✗
Amazon S3 cross-region replication
Why it's wrong here
Incorrect. Amazon S3 cross-region replication is for replicating objects across regions, not for providing failover for compute services like ASCS.
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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JA
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.