CLF-C02 Cloud Concepts Practice Question
A company runs a customer-facing web application on AWS. To ensure the application remains available if a fire or flood destroys one of the company's data centers, the IT team deploys the application across multiple physically separate facilities within the same AWS Region. Each facility has independent power, cooling, and physical security. Which component of the AWS global infrastructure does this deployment strategy primarily use?
⚠ Common exam trap
It's easy for candidates to confuse Availability Zones with AWS Regions, as candidates often think 'physically separate facilities' must mean different Regions, but the question explicitly states 'within the same AWS Region,' which directly points to Availability Zones.
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 are distinct, physically separated locations within an AWS Region, each with independent power, cooling, and physical security. Deploying across multiple Availability Zones protects against data center-level failures like fires or floods, ensuring high availability for the application.
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
An AWS Region is a geographic area that contains multiple Availability Zones. Deploying across Regions is used for geographic redundancy and disaster recovery across large distances, not for protecting against a single data center failure within the same Region. The scenario specifically describes multiple facilities within the same Region.
When this WOULD be correct
A question asks: 'A company needs to comply with data residency requirements by keeping all data within a specific geographic area. Which AWS global infrastructure component should they use?' In that case, selecting an AWS Region ensures data remains within that geographic boundary.
- ✓
Availability Zones
Why this is correct
Availability Zones are physically separate and isolated data centers within an AWS Region. Each has independent power, cooling, and physical security. By deploying across multiple Availability Zones, the application can survive the failure of one data center, meeting the requirement for high availability within the same Region.
- ✗
Edge Locations
Why it's wrong here
Edge Locations are sites used by AWS services like Amazon CloudFront to cache content closer to end-users. They are not designed to run general-purpose compute workloads like a web application, nor do they provide the independent infrastructure needed for fault tolerance across data centers.
When this WOULD be correct
A company wants to reduce latency for global users by caching static content closer to them. Which AWS component should they use?
- ✗
Local Zones
Why it's wrong here
Local Zones are extensions of an AWS Region that place compute, storage, and database services closer to large population centers for low-latency access. While they provide additional capacity, they are not primarily designed to offer multiple physically independent facilities within a single Region for fault tolerance against a data center failure.
When this WOULD be correct
A company needs to run a latency-sensitive application (e.g., real-time gaming or live streaming) for users in a specific metropolitan area, and the nearest AWS Region is too far. Deploying in a Local Zone reduces latency to single-digit milliseconds.
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.
✓Availability ZonesCorrect answer▾
Why this is correct
Availability Zones are physically separate and isolated data centers within an AWS Region. Each has independent power, cooling, and physical security. By deploying across multiple Availability Zones, the application can survive the failure of one data center, meeting the requirement for high availability within the same Region.
✗AWS RegionsWrong answer — click to see why▾
Why this is wrong here
AWS Regions are large geographic areas containing multiple, isolated Availability Zones. Deploying across physically separate facilities within the same Region uses Availability Zones, not Regions, because Regions themselves are not single facilities.
★ When this WOULD be the correct answer
A question asks: 'A company needs to comply with data residency requirements by keeping all data within a specific geographic area. Which AWS global infrastructure component should they use?' In that case, selecting an AWS Region ensures data remains within that geographic boundary.
Why candidates choose this
Candidates may confuse 'physically separate facilities' with 'Regions' because Regions are the broadest geographic division, and they might think deploying across facilities means using different Regions.
✗Edge LocationsWrong answer — click to see why▾
Why this is wrong here
Edge Locations are used for content caching and acceleration via CloudFront, not for deploying applications across physically separate facilities with independent power and cooling within a single AWS Region.
★ When this WOULD be the correct answer
A company wants to reduce latency for global users by caching static content closer to them. Which AWS component should they use?
Why candidates choose this
Candidates may confuse Edge Locations with Availability Zones because both involve distributed infrastructure, but Edge Locations are for content delivery, not for hosting application instances with high availability.
✗Local ZonesWrong answer — click to see why▾
Why this is wrong here
Local Zones are used for low-latency applications near specific geographic areas, not for high availability across physically separate facilities within a Region. The question describes multiple facilities with independent power and cooling within one Region, which is the definition of Availability Zones.
★ When this WOULD be the correct answer
A company needs to run a latency-sensitive application (e.g., real-time gaming or live streaming) for users in a specific metropolitan area, and the nearest AWS Region is too far. Deploying in a Local Zone reduces latency to single-digit milliseconds.
Why candidates choose this
Candidates may confuse Local Zones with Availability Zones because both involve geographically distributed infrastructure, but Local Zones are extensions of a Region for edge computing, not for high availability across multiple data centers within a Region.
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?”
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About these practice questions
One of 988 original CLF-C02 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
2 more ways this is tested on CLF-C02
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is designing a highly available web application on AWS. The application must remain available and continue serving traffic even if an entire physical data center experiences a complete outage. Which AWS global infrastructure component should the solutions architect use to meet this requirement?
medium- A.Deploy the application across multiple AWS Regions.
- ✓ B.Deploy the application across multiple Availability Zones within a single AWS Region.
- C.Deploy the application to an AWS Local Zone.
- D.Use an AWS Edge Location to cache the application's content.
Why B: Deploying across multiple Availability Zones (AZs) within a single AWS Region protects against the failure of an entire physical data center. Each AZ is a distinct, isolated location with independent power, cooling, and networking, so if one AZ goes down, the application continues serving traffic from the other AZs. This design meets the requirement for high availability without the complexity and cost of multi-Region deployment.
Variation 2. A company runs a critical e-commerce application in a single AWS Region. The architecture team wants to ensure the application remains available even if an entire data center fails. They plan to deploy the application across multiple physically separate and independent locations within that Region. Which component of the AWS global infrastructure should the team use to achieve this goal?
medium- ✓ A.Availability Zones
- B.Edge Locations
- C.AWS Local Zones
- D.AWS Regions
Why A: Availability Zones (AZs) are physically separate and independent data centers within an AWS Region, each with isolated power, cooling, and networking. By deploying the application across multiple AZs, the architecture ensures that if one entire data center fails, the application continues to run in the other AZs, meeting the goal of high availability within a single Region.
JA
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.