CLF-C02 Billing, Pricing, and Support Practice Question
A company runs a containerized application on Amazon ECS using a mix of Amazon EC2 On-Demand instances from different instance families (e.g., M5, C5, R5). The workload is consistent, and the company is willing to commit to a 1-year term to reduce costs. However, the team expects to change instance families within the next 12 months due to new hardware requirements and wants the flexibility to switch instance families without incurring a financial penalty. Which pricing option best meets these requirements?
⚠ Common exam trap
Many exam-takers confuse EC2 Instance Savings Plans with Compute Savings Plans, assuming instance-specific plans offer the same flexibility, but they fail to recognize that only Compute Savings Plans allow family changes without penalty or manual exchange.
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
✓
Compute Savings Plans
Compute Savings Plans provide the most flexibility by applying a discounted hourly commitment (e.g., $10/hour) across any EC2 instance family, region, OS, or tenancy, and also cover Fargate and Lambda usage. Since the company expects to change instance families within the 1-year term, Compute Savings Plans allow switching without penalty, unlike instance-specific plans.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Compute Savings Plans
Why this is correct
Correct. Compute Savings Plans apply to any EC2 instance usage across any region (when scoped to region), regardless of instance family, and provide the flexibility to change instance families without any penalty, while offering substantial discounts over On-Demand pricing.
- ✗
EC2 Instance Savings Plans
Why it's wrong here
Incorrect. EC2 Instance Savings Plans are locked to a specific instance family in a specific region. They do not allow changing instance families without losing the discount, making them unsuitable for the described requirement of switching instance families.
When this WOULD be correct
A company runs a consistent workload on a specific EC2 instance family (e.g., M5) and is willing to commit to a 1-year term to reduce costs, with no plans to change instance families. EC2 Instance Savings Plans would provide the highest discount for that specific family.
- ✗
Convertible Reserved Instances
Why it's wrong here
Incorrect. Convertible Reserved Instances allow you to change the instance attribute (including instance family) but require an exchange process that may have constraints and typically offer lower discounts than Standard RIs or Savings Plans. They are less flexible than Compute Savings Plans for frequent or rapid changes.
When this WOULD be correct
A company needs to reserve EC2 capacity for a 3-year term with the ability to change instance families, operating systems, or tenancies to adapt to evolving workloads, and is willing to manage exchange processes.
- ✗
Standard Reserved Instances
Why it's wrong here
Incorrect. Standard Reserved Instances are locked to a specific instance type and region for the duration of the term. They do not allow any changes to instance family, so they cannot meet the requirement of switching families during the contract period.
When this WOULD be correct
A company has a predictable workload running on a specific EC2 instance family (e.g., m5.large) in a single region, is willing to commit to a 1- or 3-year term, and does not anticipate changing instance families or regions. They want the highest discount possible for that fixed configuration.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The CLF-C02 exam frequently reuses these exact scenarios with slightly different constraints.
✓Compute Savings PlansCorrect answer▾
Why this is correct
Correct. Compute Savings Plans apply to any EC2 instance usage across any region (when scoped to region), regardless of instance family, and provide the flexibility to change instance families without any penalty, while offering substantial discounts over On-Demand pricing.
✗EC2 Instance Savings PlansWrong answer — click to see why▾
Why this is wrong here
EC2 Instance Savings Plans apply to a specific instance family within a region, so changing instance families would incur a penalty or require a new plan, failing the flexibility requirement.
★ When this WOULD be the correct answer
A company runs a consistent workload on a specific EC2 instance family (e.g., M5) and is willing to commit to a 1-year term to reduce costs, with no plans to change instance families. EC2 Instance Savings Plans would provide the highest discount for that specific family.
Why candidates choose this
Candidates may confuse EC2 Instance Savings Plans with Compute Savings Plans, thinking both offer flexibility, but EC2 Instance Savings Plans are limited to a specific instance family, which is less flexible.
✗Convertible Reserved InstancesWrong answer — click to see why▾
Why this is wrong here
Convertible Reserved Instances allow changing instance families but require a 1-year or 3-year commitment and do not offer the flexibility to switch without financial penalty; exchanging instances may result in different pricing terms or fees.
★ When this WOULD be the correct answer
A company needs to reserve EC2 capacity for a 3-year term with the ability to change instance families, operating systems, or tenancies to adapt to evolving workloads, and is willing to manage exchange processes.
Why candidates choose this
Candidates may confuse Convertible RIs with Savings Plans, thinking the ability to change instance families provides penalty-free flexibility, but they overlook the commitment and exchange constraints.
✗Standard Reserved InstancesWrong answer — click to see why▾
Why this is wrong here
Standard Reserved Instances require a 1-year commitment to a specific instance family and region, and switching instance families would incur a financial penalty or require selling the reservation on the Reserved Instance Marketplace, which does not meet the flexibility requirement.
★ When this WOULD be the correct answer
A company has a predictable workload running on a specific EC2 instance family (e.g., m5.large) in a single region, is willing to commit to a 1- or 3-year term, and does not anticipate changing instance families or regions. They want the highest discount possible for that fixed configuration.
Why candidates choose this
Candidates may think Standard Reserved Instances are the default cost-saving option for any 1-year commitment, overlooking that they lock in instance family and region, which conflicts with the requirement for flexibility to switch instance families without penalty.
Analysis generated from the official CLF-C02blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CLF-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 CLF-C02 exam.