PAS-C01 Design of SAP Workloads on AWS Practice Question
A company is designing an SAP S/4HANA workload on AWS. The system must be highly available within a single AWS Region. Which architecture ensures automatic failover for the SAP Central Services (ASCS) instance?
⚠ Common exam trap
Many exam-takers assume a load balancer (ALB) is required for high availability, but SAP ASCS uses proprietary protocols that ALB cannot inspect or health-check, making DNS-based failover with Route 53 the correct AWS-native approach.
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
✓
Configure Amazon Route 53 with health checks to failover to a secondary ASCS instance in a different Availability Zone.
Amazon Route 53 with health checks can monitor the primary ASCS instance and automatically fail over DNS resolution to a secondary ASCS instance in a different Availability Zone. This provides the necessary automatic failover for SAP Central Services (ASCS) without requiring a shared filesystem or cluster manager, as Route 53 health checks detect instance or service failure and update DNS records accordingly.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Place an Application Load Balancer (ALB) in front of two ASCS instances in different Availability Zones.
Why it's wrong here
ALB does not natively support SAP ASCS failover protocols; ASCS requires a virtual IP or DNS-based failover.
- ✗
Deploy ASCS on a single EC2 instance with multiple Elastic Network Interfaces (ENIs).
Why it's wrong here
Multiple ENIs increase network throughput but do not provide automatic failover for the ASCS service.
- ✗
Use Amazon CloudFront to distribute traffic to multiple ASCS instances in different Availability Zones.
Why it's wrong here
CloudFront is a content delivery network, not suitable for SAP ASCS failover routing.
- ✓
Configure Amazon Route 53 with health checks to failover to a secondary ASCS instance in a different Availability Zone.
Why this is correct
Route 53 health checks can monitor the primary ASCS and automatically route traffic to a standby instance in another AZ.
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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.