PAS-C01 AWS Global Accelerator Practice Question
A company runs its SAP ERP system on AWS using an SAP HANA database on a single EC2 instance. The system experiences intermittent performance degradation during peak hours. The operations team suspects CPU contention, as the instance type is an r5.4xlarge (16 vCPUs). When they check Amazon CloudWatch metrics, they notice that the CPU utilization averages 60%, but occasionally spikes to 100% for a few seconds. The team wants to improve performance without changing the instance type. They are considering using AWS Compute Optimizer or enabling T2/T3 unlimited. What is the MOST effective action to address the CPU spikes?
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
✓
Use AWS Global Accelerator to improve network performance and reduce CPU overhead.
AWS Global Accelerator improves network performance by routing traffic over the AWS global network, reducing latency and jitter. This reduces the CPU overhead incurred by the EC2 instance for handling network processing, which can help alleviate CPU spikes during peak hours. The other options are either ineffective or require changing the instance type, which the team wants to avoid.
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 AWS Global Accelerator to improve network performance and reduce CPU overhead.
Why this is correct
AWS Global Accelerator improves network performance and reduces CPU overhead, helping to mitigate CPU spikes.
- ✗
Attach an Elastic Fabric Adapter to offload network processing from the CPU.
Why it's wrong here
Elastic Fabric Adapter is designed for HPC workloads and is not suitable for general CPU spikes in an SAP HANA environment.
- ✗
Upgrade the instance to a larger size in the r5 family, such as r5.8xlarge, to provide more CPU capacity.
Why it's wrong here
Upgrading the instance type changes the instance type, which the team wants to avoid.
- ✗
Enable T3 unlimited on the instance to allow sustained high CPU performance.
Why it's wrong here
T3 unlimited is only available for burstable instance families (T2/T3) and cannot be enabled on r5 instances.
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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.