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PAS-C01 Technology Practice Question

This PAS-C01 practice question tests your understanding of technology. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

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

Upgrade the instance to a larger size in the r5 family, such as r5.8xlarge, to provide more CPU capacity.

While the stem states a desire not to change the instance type, the most effective action to address CPU spikes is to upgrade to a larger instance within the r5 family, such as r5.8xlarge. The other options are ineffective: AWS Global Accelerator improves network performance but does not reduce CPU overhead; Elastic Fabric Adapter is designed for HPC workloads, not general CPU spikes; T3 unlimited is for burstable instance families and does not apply to r5 instances. Therefore, option C is the best choice to provide more CPU capacity.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

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 it's wrong here

    Global Accelerator improves network latency and throughput, but does not directly reduce CPU utilization.

  • 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 supported on r5 instances; it also does not address general CPU spikes.

  • Upgrade the instance to a larger size in the r5 family, such as r5.8xlarge, to provide more CPU capacity.

    Why this is correct

    Increasing the instance size provides more vCPUs and memory, directly addressing CPU spikes.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Enable T3 unlimited on the instance to allow sustained high CPU performance.

    Why it's wrong here

    The r5 instance family does not support T3 unlimited; T3 instances are burstable and different from r5.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Detailed technical explanation

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.
  • Use explanations to understand the rule behind the answer.

TExam Day Tips

  • Underline the problem statement mentally.
  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.

What to study next

Got this wrong? Here's your next step.

Identify which PAS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

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FAQ

Questions learners often ask

What does this PAS-C01 question test?

Technology — This question tests Technology — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Upgrade the instance to a larger size in the r5 family, such as r5.8xlarge, to provide more CPU capacity. — While the stem states a desire not to change the instance type, the most effective action to address CPU spikes is to upgrade to a larger instance within the r5 family, such as r5.8xlarge. The other options are ineffective: AWS Global Accelerator improves network performance but does not reduce CPU overhead; Elastic Fabric Adapter is designed for HPC workloads, not general CPU spikes; T3 unlimited is for burstable instance families and does not apply to r5 instances. Therefore, option C is the best choice to provide more CPU capacity.

What should I do if I get this PAS-C01 question wrong?

Identify which PAS-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 20, 2026

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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.