This PAS-C01 practice question tests your understanding of design of sap workloads on aws. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is deploying SAP NetWeaver on AWS and needs to ensure high availability for the SAP Central Services (ASCS) and Enqueue Replication Server (ERS). Which AWS services can be used to implement a failover cluster for ASCS and ERS? (Select THREE.)
AWS CloudTrail
Why wrong: CloudTrail is for API auditing.
Elastic Load Balancing
Can be used to route traffic to the active ASCS instance.
Amazon Route 53
DNS failover can redirect clients to the secondary node.
AWS Config
Why wrong: Config tracks configuration changes.
Custom scripts to manage floating IP and start/stop services
Scripts can orchestrate failover.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Elastic Load Balancing
Elastic Load Balancing (ELB) is correct because it can be used in conjunction with a Network Load Balancer (NLB) to provide a stable endpoint for SAP ASCS and ERS failover. The NLB supports static IP addresses and can be configured with health checks that monitor the SAP service, automatically routing traffic to the healthy node in the cluster. This eliminates the need for a traditional floating IP and integrates with AWS-native failover mechanisms.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
AWS CloudTrail
Why it's wrong here
CloudTrail is for API auditing.
Elastic Load Balancing
Why this is correct
Can be used to route traffic to the active ASCS instance.
Related concept
Read the scenario before looking for a memorised answer.
Amazon Route 53
Why this is correct
DNS failover can redirect clients to the secondary node.
Related concept
Read the scenario before looking for a memorised answer.
AWS Config
Why it's wrong here
Config tracks configuration changes.
Custom scripts to manage floating IP and start/stop services
Why this is correct
Scripts can orchestrate failover.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often assume a traditional floating IP is required for SAP ASCS/ERS failover, but AWS recommends using an NLB and/or Route 53 to provide a stable endpoint, making custom scripts for floating IP management optional rather than mandatory.
Detailed technical explanation
In an SAP NetWeaver HA cluster on AWS, the ASCS and ERS typically use a shared filesystem (e.g., Amazon EFS or FSx for NetApp ONTAP) and a cluster manager (like Pacemaker) that coordinates failover. The NLB's target group health checks can be configured to probe the SAP-specific port (e.g., 32<instance-number> for ASCS) and automatically deregister unhealthy instances, while Route 53 can provide DNS-level failover with health checks and routing policies (e.g., failover routing) to redirect clients to the active node. Custom scripts are often used to manage the floating IP assignment and service start/stop within the cluster resource agents, but on AWS, the floating IP is typically replaced by the NLB's static IP or Route 53 alias record.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
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FAQ
Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — Read the scenario before looking for a memorised answer..
The correct answer is: Elastic Load Balancing — Elastic Load Balancing (ELB) is correct because it can be used in conjunction with a Network Load Balancer (NLB) to provide a stable endpoint for SAP ASCS and ERS failover. The NLB supports static IP addresses and can be configured with health checks that monitor the SAP service, automatically routing traffic to the healthy node in the cluster. This eliminates the need for a traditional floating IP and integrates with AWS-native failover mechanisms.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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.
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