PAS-C01 Migration Practice Question
An organization is migrating a SAP ERP system to AWS. The system has a requirement for high availability for the SAP Central Services (ASCS) instance. Which architecture should be used to meet this requirement?
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
✓
Deploy two ASCS instances in different Availability Zones with a shared Amazon EFS or FSx for Windows File Server and a floating IP using Route 53.
For high availability of SAP Central Services (ASCS), you need to deploy two ASCS instances in different Availability Zones with a shared filesystem (Amazon EFS or FSx for Windows File Server) and a floating IP mechanism. Option B correctly describes this architecture using Route 53 for the floating IP. Option A is incorrect because Multi-AZ RDS is for databases, not ASCS. Option C is incorrect because an EBS volume cannot be attached to multiple EC2 instances simultaneously. Option D is incorrect because an Application Load Balancer does not support floating IPs and is not appropriate for ASCS.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Deploy the ASCS on a single EC2 instance with a Multi-AZ RDS database.
Why it's wrong here
Multi-AZ RDS is for database HA, not ASCS.
- ✓
Deploy two ASCS instances in different Availability Zones with a shared Amazon EFS or FSx for Windows File Server and a floating IP using Route 53.
Why this is correct
Shared storage and floating IP meet ASCS HA requirements.
- ✗
Deploy two ASCS instances in different Availability Zones with an EBS volume attached to both.
Why it's wrong here
EBS cannot be attached to multiple instances.
- ✗
Use an Application Load Balancer to distribute traffic between two ASCS instances.
Why it's wrong here
ALB does not provide a floating IP for ASCS.
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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.