PAS-C01 Migration Practice Question
A company is migrating an SAP system to AWS and needs to ensure high availability for SAP Central Services (ASCS) and Enqueue Replication Server (ERS). Which architecture meets SAP's high availability requirements?
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
✓
Use a cluster solution with a shared file system and a virtual IP address in a multi-AZ setup
A cluster solution with a shared file system and a virtual IP address in a multi-AZ setup meets SAP's high availability requirements for ASCS and ERS. This architecture ensures automatic failover across Availability Zones (AZs) and is the standard recommendation for SAP HA. Option B is incorrect because deploying ASCS and ERS in a single AZ with automatic restart does not protect against AZ failure. Option C is incorrect because an Application Load Balancer is designed for HTTP/HTTPS traffic, not for SAP Central Services which require a shared file system and virtual IP. Option D is incorrect because Amazon Route 53 health checks alone do not provide the fast failover required; they are typically used with DNS-based failover, not cluster-based HA.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Use a cluster solution with a shared file system and a virtual IP address in a multi-AZ setup
Why this is correct
This is the recommended architecture for SAP ASCS/ERS HA, using Pacemaker and a floating IP.
- ✗
Deploy ASCS and ERS in a single Availability Zone with an automatic restart
Why it's wrong here
Single AZ is not highly available; a failure would cause downtime.
- ✗
Use an Application Load Balancer to distribute traffic between ASCS and ERS
Why it's wrong here
ALB does not support the SAP-specific protocols for ASCS/ERS.
- ✗
Configure Amazon Route 53 health checks to failover between ASCS and ERS
Why it's wrong here
Route 53 DNS-based failover is too slow for SAP HA requirements (sub-second).
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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.