- A
On-demand self-service
Why wrong: On-demand self-service IS a NIST characteristic — users can provision resources without human interaction with the provider.
- B
Resource pooling
Why wrong: Resource pooling IS a NIST characteristic — multiple customers share pooled resources with different physical and virtual resources dynamically assigned.
- C
Dedicated hardware allocation per customer
Dedicated hardware per customer is NOT a NIST characteristic — it's actually the opposite. Cloud computing uses shared multi-tenant resource pools (though dedicated options like Dedicated Hosts exist as a special case).
- D
Measured service
Why wrong: Measured service IS a NIST characteristic — cloud systems automatically control and optimize resource use through metered pay-per-use pricing.
Quick Answer
The answer is dedicated hardware allocation per customer, which is not one of the five essential characteristics of cloud computing as defined by NIST. The correct characteristics are on-demand self-service, broad network access, resource pooling, rapid elasticity, and measured service, as outlined in NIST SP 800-145. Dedicated hardware allocation contradicts the principle of resource pooling, where physical and virtual resources are dynamically assigned and reassigned across multiple consumers using a multi-tenant model, rather than being locked to a single customer. On the AWS Certified Cloud Practitioner CLF-C02 exam, this question tests your ability to distinguish the NIST essential characteristics from common misconceptions about cloud infrastructure. A frequent trap is confusing security or isolation features with the fundamental definition, so remember that cloud computing is defined by shared, elastic, and metered resources, not by dedicated hardware. A useful memory tip is the acronym O-B-R-E-M: On-demand, Broad network access, Resource pooling, Elasticity, and Measured service.
CLF-C02 Cloud Concepts Practice Question
This CLF-C02 practice question tests your understanding of cloud concepts. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Which of the following is NOT one of the five characteristics of cloud computing as defined by NIST?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"NOT"Why it matters: Negative qualifier — you are looking for the one option that does NOT apply. Most options will be true; only one is false for this scenario.
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
Dedicated hardware allocation per customer
Option C is correct because the five essential characteristics of cloud computing as defined by NIST SP 800-145 are on-demand self-service, broad network access, resource pooling, rapid elasticity, and measured service. Dedicated hardware allocation per customer is not a characteristic; instead, cloud computing relies on resource pooling where physical and virtual resources are dynamically assigned and reassigned according to consumer demand, often with multi-tenant models.
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 IS a NIST characteristic — users can provision resources without human interaction with the provider.
- ✗
Resource pooling
Why it's wrong here
Resource pooling IS a NIST characteristic — multiple customers share pooled resources with different physical and virtual resources dynamically assigned.
- ✓
Dedicated hardware allocation per customer
Why this is correct
Dedicated hardware per customer is NOT a NIST characteristic — it's actually the opposite. Cloud computing uses shared multi-tenant resource pools (though dedicated options like Dedicated Hosts exist as a special case).
Clue confirmation
The clue word "NOT" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Measured service
Why it's wrong here
Measured service IS a NIST characteristic — cloud systems automatically control and optimize resource use through metered pay-per-use pricing.
Common exam traps
Common exam trap: answer the scenario, not the keyword
AWS often tests the distinction between optional cloud deployment models (e.g., dedicated hosts, private cloud) and the mandatory NIST essential characteristics, leading candidates to mistakenly think dedicated hardware allocation is a required characteristic.
Detailed technical explanation
How to think about this question
Under the hood, NIST's resource pooling characteristic enables multi-tenancy through hypervisor-level isolation (e.g., VMware ESXi, KVM) or container orchestration (e.g., Kubernetes), where a single physical host serves multiple tenants without dedicated hardware per customer. In a real-world scenario, AWS EC2 uses shared physical servers across instances, but a customer can request a Dedicated Host (for compliance or licensing), which is an optional feature, not a defining characteristic of cloud computing. The trap is that candidates confuse optional features like dedicated hardware with the essential NIST characteristics that define the cloud model.
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: Dedicated hardware allocation per customer — Option C is correct because the five essential characteristics of cloud computing as defined by NIST SP 800-145 are on-demand self-service, broad network access, resource pooling, rapid elasticity, and measured service. Dedicated hardware allocation per customer is not a characteristic; instead, cloud computing relies on resource pooling where physical and virtual resources are dynamically assigned and reassigned according to consumer demand, often with multi-tenant models.
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: "NOT". Negative qualifier — you are looking for the one option that does NOT apply. Most options will be true; only one is false for this scenario.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 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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