- A
On-demand self-service
Why wrong: On-demand self-service refers to a customer's ability to provision computing capabilities, such as server time and network storage, automatically without requiring human interaction with each service provider. The scenario describes a lack of control over physical resources and sharing across customers, not the ability to self-provision.
- B
Broad network access
Why wrong: Broad network access means that resources are available over the network and can be accessed by standard mechanisms (e.g., mobile phones, laptops, workstations). The scenario does not focus on network accessibility but rather on the pooling of physical resources and lack of location control.
- C
Resource pooling
Resource pooling is correct. The cloud provider pools its computing resources to serve multiple consumers using a multi-tenant model. The customer has no visibility or control over the exact physical location of the resources, only a higher-level abstraction such as region or availability zone. This characteristic allows for efficient utilization and cost savings.
- D
Rapid elasticity
Why wrong: Rapid elasticity refers to the ability to quickly scale resources up or down, often automatically in response to demand. The scenario describes resource sharing and lack of physical location control, not the speed or automatic nature of scaling.
CLF-C02 Cloud Concepts Practice Question
This CLF-C02 practice question tests your understanding of cloud concepts. 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 moves its infrastructure to AWS. The company's IT team notices that they have no control over which specific physical server their virtual machines run on, and they are unaware of the exact hardware location except at the regional level. The underlying physical resources are shared across multiple AWS customers. Which essential characteristic of cloud computing does this scenario BEST describe?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Resource pooling
Option C is correct because resource pooling is the cloud characteristic where the provider's computing resources are pooled to serve multiple customers using a multi-tenant model, with physical and virtual resources dynamically assigned and reassigned according to customer demand. The scenario describes the customer having no control over the exact physical server or hardware location beyond the regional level, which is the essence of resource pooling. This allows AWS to achieve economies of scale while abstracting the underlying hardware from the customer.
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.
- ✗
On-demand self-service
Why it's wrong here
On-demand self-service refers to a customer's ability to provision computing capabilities, such as server time and network storage, automatically without requiring human interaction with each service provider. The scenario describes a lack of control over physical resources and sharing across customers, not the ability to self-provision.
- ✗
Broad network access
Why it's wrong here
Broad network access means that resources are available over the network and can be accessed by standard mechanisms (e.g., mobile phones, laptops, workstations). The scenario does not focus on network accessibility but rather on the pooling of physical resources and lack of location control.
- ✓
Resource pooling
Why this is correct
Resource pooling is correct. The cloud provider pools its computing resources to serve multiple consumers using a multi-tenant model. The customer has no visibility or control over the exact physical location of the resources, only a higher-level abstraction such as region or availability zone. This characteristic allows for efficient utilization and cost savings.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Rapid elasticity
Why it's wrong here
Rapid elasticity refers to the ability to quickly scale resources up or down, often automatically in response to demand. The scenario describes resource sharing and lack of physical location control, not the speed or automatic nature of scaling.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse resource pooling with rapid elasticity because both involve dynamic allocation, but resource pooling is about multi-tenant sharing of physical infrastructure, while rapid elasticity is about the speed of scaling resources up or down.
Trap categories for this question
Scenario analysis trap
On-demand self-service refers to a customer's ability to provision computing capabilities, such as server time and network storage, automatically without requiring human interaction with each service provider. The scenario describes a lack of control over physical resources and sharing across customers, not the ability to self-provision.
Detailed technical explanation
How to think about this question
Under the hood, AWS uses a hypervisor (a customized version of Xen or KVM) to manage multi-tenancy on each physical host, enforcing strict isolation between customer instances via hardware-assisted virtualization and dedicated network interfaces (e.g., Elastic Network Adapter). A real-world scenario where this matters is during a 'noisy neighbor' effect, where resource pooling can cause performance variability if a co-tenant consumes excessive I/O or CPU cache, though AWS mitigates this with features like Dedicated Instances or placement groups. The AWS Nitro System further abstracts the hypervisor, offloading virtualization functions to dedicated hardware, enhancing security and performance in the pooled environment.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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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Cloud Concepts — study guide chapter
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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: Resource pooling — Option C is correct because resource pooling is the cloud characteristic where the provider's computing resources are pooled to serve multiple customers using a multi-tenant model, with physical and virtual resources dynamically assigned and reassigned according to customer demand. The scenario describes the customer having no control over the exact physical server or hardware location beyond the regional level, which is the essence of resource pooling. This allows AWS to achieve economies of scale while abstracting the underlying hardware from the customer.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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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