- A
AWS Regions
Why wrong: Regions are the large geographic areas containing multiple AZs. The company is deploying within one region but across multiple isolated locations within it — those are AZs.
- B
Availability Zones
AZs are one or more discrete data centres within a Region, each with independent power, cooling, and networking. Deploying across multiple AZs means a failure in one AZ does not affect workloads in the others.
- C
Edge Locations
Why wrong: Edge locations are CloudFront caching points globally. They are not general-purpose compute locations for deploying web applications.
- D
VPC Subnets
Why wrong: Subnets are logical network divisions within a VPC. While subnets can be placed in different AZs, the AZs themselves are the isolated physical locations.
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 deploys their web application across multiple isolated locations within the same AWS Region, each with independent power, cooling, and networking. This design ensures that a failure in one location does not affect the others. What are these isolated locations called?
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
Availability Zones
Availability Zones (AZs) are isolated locations within an AWS Region that consist of one or more data centers with independent power, cooling, and networking. This design ensures that a failure in one AZ does not affect the others, providing high availability and fault tolerance for applications. The scenario directly describes the defining characteristics of an Availability Zone.
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.
- ✗
AWS Regions
Why it's wrong here
Regions are the large geographic areas containing multiple AZs. The company is deploying within one region but across multiple isolated locations within it — those are AZs.
- ✓
Availability Zones
Why this is correct
AZs are one or more discrete data centres within a Region, each with independent power, cooling, and networking. Deploying across multiple AZs means a failure in one AZ does not affect workloads in the others.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Edge Locations
Why it's wrong here
Edge locations are CloudFront caching points globally. They are not general-purpose compute locations for deploying web applications.
- ✗
VPC Subnets
Why it's wrong here
Subnets are logical network divisions within a VPC. While subnets can be placed in different AZs, the AZs themselves are the isolated physical locations.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Availability Zones with AWS Regions, thinking that any isolated location must be a different Region, but the question explicitly states 'within the same AWS Region,' which points directly to Availability Zones.
Detailed technical explanation
How to think about this question
Each Availability Zone is physically separated by a meaningful distance (typically several kilometers) to mitigate correlated failures, yet they are connected via low-latency, high-bandwidth fiber links to enable synchronous replication. AWS recommends deploying application instances across at least two AZs to achieve a Service Level Agreement (SLA) of 99.99% for Amazon EC2. Under the hood, each AZ has its own independent power grid, cooling systems, and network connectivity to the AWS backbone, ensuring that a single event (e.g., a power outage or flood) does not cascade across AZs.
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
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 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: Availability Zones — Availability Zones (AZs) are isolated locations within an AWS Region that consist of one or more data centers with independent power, cooling, and networking. This design ensures that a failure in one AZ does not affect the others, providing high availability and fault tolerance for applications. The scenario directly describes the defining characteristics of an Availability Zone.
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
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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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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