PAS-C01 Design of SAP Workloads on AWS Practice Question
A company is designing a multi-zone SAP system on AWS. They want to minimize network latency between SAP application servers and the SAP HANA database. What is the best practice for deploying these components?
⚠ Common exam trap
Many candidates assume cross-AZ deployment provides high availability without considering the latency penalty, but for SAP HANA, latency is prioritized over AZ-level redundancy in this design scenario, and the question explicitly asks for minimizing latency, not maximizing availability.
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 application servers and HANA in the same AZ and same VPC.
Deploying both the SAP application servers and the SAP HANA database in the same Availability Zone (AZ) and the same VPC minimizes network latency because traffic stays within a single data center, using low-latency, high-bandwidth links. SAP HANA is latency-sensitive, and even single-digit millisecond increases can degrade performance; co-location in the same AZ ensures the lowest possible round-trip time (RTT) for SQL queries and data transfers.
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 in different VPCs and use VPC peering.
Why it's wrong here
VPC peering adds latency compared to same VPC.
- ✗
Deploy in different AWS Regions.
Why it's wrong here
Inter-Region latency is too high for SAP.
- ✓
Deploy application servers and HANA in the same AZ and same VPC.
Why this is correct
Same AZ and VPC minimizes latency.
- ✗
Deploy application servers in one AZ and HANA in another AZ.
Why it's wrong here
Cross-AZ traffic introduces latency.
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