AWS Certified SAP on AWS – Specialty (PAS-C01) — Question 25

A company is hosting its SAP workloads on AWS. An SAP solutions architect is designing high availability architecture for the company’s production SAP S/4HANA and SAP BW/4HANA workloads. These workloads have the following requirements:
Redundant SAP application servers that consist of a primary application server (PAS) and an additional application server (AAS)
ASCS and ERS instances that use a failover cluster
Database high availability with a primary DB instance and a secondary DB instance
How should the SAP solutions architect design the architecture to meet these requirements?

Answer options

• A. Deploy ASCS and ERS cluster nodes in different subnets within the same Availability Zone. Deploy the PAS instance and AAS instance in different subnets within the same Availability Zone. Deploy the primary DB instance and secondary DB instance in different subnets within the same Availability Zone. Deploy all the components in the same VPC.
• B. Deploy ASCS and ERS cluster nodes in different subnets within the same Availability Zone. Deploy the PAS instance and AAS instance in different subnets within the same Availability Zone. Deploy the primary DB instance and secondary DB instance in different subnets within the same Availability Zone. Deploy the ASCS instance, PAS instance, and primary DB instance in one VPC. Deploy the ERS instance, AAS instance, and secondary DB instance in a different VPC.
• C. Deploy ASCS and ERS cluster nodes in different subnets across two Availability Zones. Deploy the PAS instance and AAS instance in different subnets across two Availability Zones. Deploy the primary DB instance and secondary DB instance in different subnets across two Availability Zones. Deploy all the components in the same VPC.
• D. Deploy ASCS and ERS cluster nodes in different subnets across two Availability Zones. Deploy the PAS instance and AAS instance in different subnets across two Availability Zones. Deploy the primary DB instance and secondary DB instance in different subnets across two Availability Zones. Deploy the ASCS instance, PAS instance, and primary DB instance in one VPC. Deploy the ERS instance, AAS instance, and secondary DB instance in a different VPC.

Correct answer: C

Explanation

Option C is correct because it ensures high availability by deploying all components across two Availability Zones, which provides redundancy and failover capabilities. The other options either restrict deployment to a single Availability Zone or separate critical components across different VPCs, which does not align with high availability best practices.