PAS-C01 Technology Practice Question
An SAP HANA system is deployed on AWS with a cluster of EC2 instances. The system requires high network throughput between the nodes for HANA scale-out. Which EC2 networking feature should be used?
⚠ Common exam trap
Many candidates confuse 'enhanced networking' with the older ixgbevf driver or think that multiple ENIs or placement groups alone can solve throughput bottlenecks, but only ENA provides the high-bandwidth, low-latency performance required for modern HANA scale-out workloads.
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
✓
Enable Elastic Network Adapter (ENA) support on the instances.
For SAP HANA scale-out clusters requiring high network throughput between EC2 instances, the correct feature is Elastic Network Adapter (ENA) support. ENA is a custom network interface optimized for high-throughput and low-latency packet processing, providing up to 100 Gbps of network bandwidth on supported instance types. This directly meets the performance demands of HANA's inter-node communication.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use multiple Elastic Network Interfaces (ENIs) per instance.
Why it's wrong here
Multiple ENIs do not increase single-flow throughput.
- ✓
Enable Elastic Network Adapter (ENA) support on the instances.
Why this is correct
ENA provides high throughput and low latency, essential for HANA scale-out.
- ✗
Use the Intel 82599 VF (ixgbevf) driver for enhanced networking.
Why it's wrong here
ixgbevf is older; ENA is recommended for newer instances.
- ✗
Place all nodes in a cluster placement group.
Why it's wrong here
Placement group reduces latency but does not increase network throughput.
Go deeper
Related to this question
About these practice questions
Courseiva writes every PAS-C01 question from scratch — 1,616 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.