PAS-C01 Design of SAP Workloads on AWS Practice Question
A company is designing an SAP HANA multi-node scale-out deployment on AWS. The system requires high bandwidth and low latency between nodes. Which AWS networking feature should be used to meet these requirements?
⚠ Common exam trap
Watch out — candidates often confuse EFA with standard Elastic Network Adapters (ENA) or assume that any high-bandwidth network feature (like Direct Connect or Transit Gateway) can solve inter-node latency, when only EFA provides the OS-bypass and RDMA semantics required for SAP HANA scale-out performance.
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
✓
Elastic Fabric Adapter (EFA)
Elastic Fabric Adapter (EFA) is correct because it provides OS-bypass capabilities using the Libfabric API, enabling direct memory access (DMA) between SAP HANA nodes. This eliminates kernel overhead, delivering the high bandwidth (up to 100 Gbps per adapter) and ultra-low latency (microsecond-level) required for SAP HANA multi-node scale-out workloads, where inter-node communication is critical for table partitioning and data replication.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Elastic Fabric Adapter (EFA)
Why this is correct
EFA provides low-latency, high-bandwidth inter-instance communication required for HANA scale-out.
- ✗
AWS Direct Connect
Why it's wrong here
Direct Connect connects on-premises to AWS, not instance-to-instance.
- ✗
Transit Gateway
Why it's wrong here
Transit Gateway is for connecting multiple VPCs and on-premises networks.
- ✗
VPC Peering
Why it's wrong here
VPC Peering connects VPCs, not instances within the same VPC.
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JA
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.