SAP-C02 Design for New Solutions Practice Question
A company is designing a high-performance computing (HPC) workload on AWS. The workload requires tightly coupled inter-node communication with low latency and high bandwidth. Which THREE services or features should the architect consider to meet these requirements? (Choose three.)
⚠ Common exam trap
A common mix-up: candidates confuse VPC peering or Global Accelerator as solutions for inter-node latency, but these services address different problems (cross-VPC connectivity and global traffic optimization) and do not reduce latency for tightly coupled HPC communication within a single cluster.
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
✓
EC2 instances with enhanced networking and high-throughput (e.g., p4d, p3dn)
EC2 instances like p4d and p3dn are designed for HPC workloads, offering enhanced networking (up to 100 Gbps) and high-throughput capabilities. These instances support Elastic Fabric Adapter (EFA) and are optimized for tightly coupled inter-node communication, providing the low latency and high bandwidth required for HPC.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
EC2 instances with enhanced networking and high-throughput (e.g., p4d, p3dn)
Why this is correct
These instance types offer high network bandwidth and EFA support.
- ✗
VPC peering between multiple VPCs
Why it's wrong here
VPC peering does not improve performance; it connects separate VPCs.
- ✗
AWS Global Accelerator
Why it's wrong here
Global Accelerator is for user-facing traffic, not inter-node HPC.
- ✓
Placement Groups (Cluster Placement Group)
Why this is correct
Cluster placement groups place instances in the same rack, reducing latency.
- ✓
Elastic Fabric Adapter (EFA)
Why this is correct
EFA provides OS-bypass for low latency MPI communication.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-C02 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 SAP-C02 exam.