AWS Certified SAP on AWS – Specialty (PAS-C01) — Question 1

A company hosts its SAP NetWeaver workload on SAP HANA in the AWS Cloud. The SAP NetWeaver application is protected by a cluster solution that uses Red Hat Enterprise Linux. High Availability Add-On. The cluster solution uses an overlay IP address to ensure that the high availability cluster is still accessible during failover scenarios.
An SAP solutions architect needs to facilitate the network connection to this overlay IP address from multiple locations. These locations include more than 25 VPCs, other AWS Regions, and the on-premises environment. The company already has set up an AWS Direct Connect connection between the on-premises environment and AWS.
What should the SAP solutions architect do to meet these requirements in the MOST scalable manner?

Answer options

• A. Use VPC peering between the VPCs to route traffic between them.
• B. Use AWS Transit Gateway to connect the VPCs and on-premises networks together.
• C. Use a Network Load Balancer to route connections to various targets within VPCs.
• D. Deploy a Direct Connect gateway to connect the Direct Connect connection over a private VIF to one or more VPCs in any accounts.

Correct answer: B

Explanation

The correct answer is B, as AWS Transit Gateway allows for scalable connectivity between multiple VPCs and on-premises networks using a single gateway, simplifying network management. Option A, VPC peering, can become complex and unmanageable with over 25 VPCs. Option C, a Network Load Balancer, is not suited for connecting multiple networks directly. Option D, while useful, does not provide the same level of scalability and simplicity as Transit Gateway for this scenario.