- A
Resource pooling
Why wrong: Resource pooling describes how the provider's resources are shared across multiple customers, providing location independence and economies of scale. The scenario does not involve multi-tenancy or location independence; it focuses on the developer's ability to provision resources without human intervention.
- B
On-demand self-service
Correct. On-demand self-service means a user can provision computing capabilities automatically without requiring human interaction with the service provider. The developer using the AWS Management Console to launch an EC2 instance without contacting IT perfectly illustrates this characteristic.
- C
Measured service
Why wrong: Measured service means that cloud systems automatically control and optimize resource use by leveraging a metering capability (e.g., pay-per-use billing). While AWS does provide measured service, this scenario is about the initial provisioning, not about usage tracking or billing.
- D
Rapid elasticity
Why wrong: Rapid elasticity is the ability to scale resources up and down quickly in response to demand. The scenario describes a one-time provisioning of a test environment, not scaling based on fluctuating demand, so it does not best fit rapid elasticity.
CLF-C02 Cloud Concepts Practice Question
This CLF-C02 practice question tests your understanding of cloud concepts. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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's development team frequently needs temporary test environments. A developer can log into the AWS Management Console, select an Amazon EC2 instance type, configure storage, and launch the instance within minutes without any interaction with the IT infrastructure team. This capability is an example of which essential characteristic of cloud computing?
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
On-demand self-service
The scenario describes a developer independently provisioning EC2 instances without requiring IT intervention. This directly matches the 'on-demand self-service' characteristic of cloud computing, where users can provision computing resources as needed automatically, without requiring human interaction with each service provider.
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.
- ✗
Resource pooling
Why it's wrong here
Resource pooling describes how the provider's resources are shared across multiple customers, providing location independence and economies of scale. The scenario does not involve multi-tenancy or location independence; it focuses on the developer's ability to provision resources without human intervention.
- ✓
On-demand self-service
Why this is correct
Correct. On-demand self-service means a user can provision computing capabilities automatically without requiring human interaction with the service provider. The developer using the AWS Management Console to launch an EC2 instance without contacting IT perfectly illustrates this characteristic.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Measured service
Why it's wrong here
Measured service means that cloud systems automatically control and optimize resource use by leveraging a metering capability (e.g., pay-per-use billing). While AWS does provide measured service, this scenario is about the initial provisioning, not about usage tracking or billing.
- ✗
Rapid elasticity
Why it's wrong here
Rapid elasticity is the ability to scale resources up and down quickly in response to demand. The scenario describes a one-time provisioning of a test environment, not scaling based on fluctuating demand, so it does not best fit rapid elasticity.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing 'rapid elasticity' (the ability to scale resources quickly) with 'on-demand self-service' (the ability to provision resources without human intervention), as both involve speed but address different aspects of cloud computing.
Trap categories for this question
Scenario analysis trap
Resource pooling describes how the provider's resources are shared across multiple customers, providing location independence and economies of scale. The scenario does not involve multi-tenancy or location independence; it focuses on the developer's ability to provision resources without human intervention.
Detailed technical explanation
How to think about this question
On-demand self-service is enabled by AWS APIs (e.g., EC2 RunInstances) and the AWS Management Console, which allow users to launch instances without any manual approval workflow. This characteristic is foundational to Infrastructure as Code (IaC) practices, where tools like AWS CloudFormation or Terraform automate provisioning, and it contrasts with traditional on-premises environments where hardware procurement and setup could take days or weeks.
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.
TExam Day Tips
- 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
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this CLF-C02 question test?
Cloud Concepts — This question tests Cloud Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: On-demand self-service — The scenario describes a developer independently provisioning EC2 instances without requiring IT intervention. This directly matches the 'on-demand self-service' characteristic of cloud computing, where users can provision computing resources as needed automatically, without requiring human interaction with each service provider.
What should I do if I get this CLF-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 11, 2026
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.
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