CLF-C02 Cloud Technology and Services Practice Question
A financial services company runs a high-frequency trading application that must process transactions with sub-millisecond latency. The application must run in the company's own data center to meet strict latency requirements, but the company wants to use the same AWS management APIs, control plane, and tools (such as AWS CloudFormation and Amazon CloudWatch) for consistency across on-premises and cloud environments. The company also needs the ability to seamlessly run Amazon EBS-backed Amazon EC2 instances locally. Which AWS service should the company use to meet these requirements?
⚠ Common exam trap
Test-takers frequently confuse AWS Outposts with AWS Local Zones or Wavelength, as candidates often think any edge or local compute service can run in their own data center, but only Outposts provides the fully managed, on-premises AWS infrastructure with local EBS-backed EC2 instances.
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
✓
AWS Outposts
AWS Outposts is correct because it extends AWS infrastructure, services, APIs, and tools to on-premises data centers, enabling the company to run Amazon EBS-backed EC2 instances locally with sub-millisecond latency while using the same AWS management APIs, CloudFormation, and CloudWatch for consistency.
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 Outposts
Why this is correct
Correct. AWS Outposts extends AWS infrastructure and services to on-premises facilities, allowing the company to run EC2 instances with EBS storage using the same AWS APIs and management tools, while keeping the application in the local data center for ultra-low latency.
- ✗
AWS Wavelength
Why it's wrong here
AWS Wavelength is incorrect because it embeds AWS compute and storage within telecommunication providers' 5G network edge, not inside the customer's own data center. It is optimized for ultra-low-latency applications that serve mobile devices and IoT endpoints at the network edge, such as AR/VR or connected vehicles. For high-frequency trading, the application must remain in the firm's physical data center to achieve sub-millisecond latency, which Wavelength cannot provide because the infrastructure is geographically distributed across carrier locations and not within the customer's facility.
When this WOULD be correct
A mobile gaming company needs to run real-time rendering workloads with single-digit millisecond latency for 5G users. They want to use AWS APIs and tools while deploying at the network edge. AWS Wavelength would be the correct answer.
- ✗
AWS Local Zones
Why it's wrong here
Incorrect. AWS Local Zones place AWS compute and storage closer to large population centers, but they are AWS-managed locations, not the customer's own data center. They also do not provide sub-millisecond latency for on-premises applications.
When this WOULD be correct
A company needs to run latency-sensitive applications (e.g., real-time gaming, live video streaming) in a specific metro area close to users, but does not require on-premises deployment. They want to use standard AWS APIs and tools, and can run Amazon EC2 instances in that location.
- ✗
AWS Direct Connect
Why it's wrong here
Incorrect. AWS Direct Connect provides a dedicated private network connection from the customer's data center to AWS. However, it does not bring AWS infrastructure on-premises; applications must still run in an AWS Region or Local Zone, which would add latency.
When this WOULD be correct
A company needs a dedicated, low-latency, and consistent network connection between its on-premises data center and AWS VPC to support hybrid workloads, such as real-time data replication or large-scale data migration, without running AWS infrastructure locally.
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.
✓AWS OutpostsCorrect answer▾
Why this is correct
Correct. AWS Outposts extends AWS infrastructure and services to on-premises facilities, allowing the company to run EC2 instances with EBS storage using the same AWS APIs and management tools, while keeping the application in the local data center for ultra-low latency.
✗AWS WavelengthWrong answer — click to see why▾
Why this is wrong here
AWS Wavelength is designed for ultra-low latency applications at the edge of 5G networks, not for on-premises data centers. It does not run in the customer's own data center or support local EBS-backed EC2 instances.
★ When this WOULD be the correct answer
A mobile gaming company needs to run real-time rendering workloads with single-digit millisecond latency for 5G users. They want to use AWS APIs and tools while deploying at the network edge. AWS Wavelength would be the correct answer.
Why candidates choose this
Candidates may associate 'low latency' with Wavelength without realizing it is specific to telecom edge locations, not on-premises data centers.
✗AWS Local ZonesWrong answer — click to see why▾
Why this is wrong here
AWS Local Zones extend AWS infrastructure to metropolitan areas for low-latency applications, but they do not run in the customer's own data center. The requirement to keep the application in the company's own data center eliminates Local Zones.
★ When this WOULD be the correct answer
A company needs to run latency-sensitive applications (e.g., real-time gaming, live video streaming) in a specific metro area close to users, but does not require on-premises deployment. They want to use standard AWS APIs and tools, and can run Amazon EC2 instances in that location.
Why candidates choose this
Candidates may confuse Local Zones with Outposts because both provide low-latency compute, but Local Zones are AWS-managed edge locations, not customer-owned data centers.
✗AWS Direct ConnectWrong answer — click to see why▾
Why this is wrong here
AWS Direct Connect establishes a dedicated network connection from on-premises to AWS, but it does not run AWS services locally in the customer's data center. The requirement to run Amazon EBS-backed EC2 instances on-premises with sub-millisecond latency cannot be met by Direct Connect alone.
★ When this WOULD be the correct answer
A company needs a dedicated, low-latency, and consistent network connection between its on-premises data center and AWS VPC to support hybrid workloads, such as real-time data replication or large-scale data migration, without running AWS infrastructure locally.
Why candidates choose this
Candidates may confuse Direct Connect as a solution for extending AWS services on-premises because it provides a private, low-latency link, but it does not provide local compute or storage capabilities.
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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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.