CLF-C02 Cloud Technology and Services Practice Question
A company has an on-premises file server that stores large datasets. The company wants to reduce its on-premises storage footprint by moving cold data to AWS. However, users need low-latency access to frequently used files, and the applications must be able to access the data using the standard SMB protocol. The company wants to cache frequently accessed data locally on-premises for low latency, while securely storing all data in Amazon S3. Which AWS service should the company use?
⚠ Common exam trap
Test-takers frequently confuse AWS DataSync (a transfer tool) with a storage service that provides ongoing local caching and SMB access, or assume Amazon FSx for Windows File Server can be deployed on-premises when it is a cloud-only service.
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 Storage Gateway File Gateway
AWS Storage Gateway File Gateway is the correct choice because it provides on-premises caching of frequently accessed files for low-latency access via the standard SMB protocol, while all data is stored durably in Amazon S3. This directly meets the requirement to reduce on-premises storage footprint by moving cold data to AWS, while keeping hot data cached locally for performance.
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 Storage Gateway File Gateway
Why this is correct
Correct. File Gateway provides an on-premises file share that caches active data locally and stores all data durably in Amazon S3. It supports SMB protocol, enabling existing applications to access the cloud storage seamlessly while maintaining low latency for frequently used files.
- ✗
Amazon FSx for Windows File Server
Why it's wrong here
Incorrect. Amazon FSx for Windows File Server is a fully managed native Windows file system in the cloud, but it does not provide on-premises caching. It is designed for use within AWS or via VPN/Direct Connect, but access from on-premises typically has higher latency than a local cache, and it does not reduce the on-premises storage footprint directly.
When this WOULD be correct
A company needs a fully managed, native Windows file server in the cloud that supports SMB protocol and Active Directory integration, with no on-premises caching requirement. For example, migrating a Windows-based application to AWS that requires shared file storage with Windows-specific features.
- ✗
AWS DataSync
Why it's wrong here
Incorrect. AWS DataSync is a data transfer service used for moving large amounts of data between on-premises storage and AWS. It does not provide continuous file serving or local caching, so it is not suitable for low-latency access to frequently used files.
- ✗
Amazon S3 with AWS Direct Connect
Why it's wrong here
Incorrect. While AWS Direct Connect provides a private network connection to AWS, Amazon S3 is an object storage service and does not natively support the SMB protocol. To serve files to on-premises applications over SMB, additional software (e.g., a file gateway or a file server in the cloud) would be required. This combination does not fulfill the need for a simple file share with local caching.
When this WOULD be correct
A company needs high-bandwidth, low-latency access to Amazon S3 from on-premises for large data transfers, and the applications can use HTTPS or S3 APIs instead of SMB. The question would emphasize network performance and security, not caching or protocol compatibility.
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 Storage Gateway File GatewayCorrect answer▾
Why this is correct
Correct. File Gateway provides an on-premises file share that caches active data locally and stores all data durably in Amazon S3. It supports SMB protocol, enabling existing applications to access the cloud storage seamlessly while maintaining low latency for frequently used files.
✗Amazon FSx for Windows File ServerWrong answer — click to see why▾
Why this is wrong here
Amazon FSx for Windows File Server provides a fully managed Windows file server in the cloud, but it does not cache data locally on-premises for low-latency access. The requirement is to reduce on-premises storage by moving cold data to S3 while caching hot data locally, which is not supported by FSx.
★ When this WOULD be the correct answer
A company needs a fully managed, native Windows file server in the cloud that supports SMB protocol and Active Directory integration, with no on-premises caching requirement. For example, migrating a Windows-based application to AWS that requires shared file storage with Windows-specific features.
Why candidates choose this
Candidates may choose FSx because it supports SMB protocol and is a managed file service, but they overlook the requirement for local caching of frequently accessed data on-premises.
✗Amazon S3 with AWS Direct ConnectWrong answer — click to see why▾
Why this is wrong here
Amazon S3 with AWS Direct Connect provides a dedicated network connection to S3 but does not cache data locally on-premises or support the SMB protocol natively, so it cannot meet the low-latency access and SMB requirements.
★ When this WOULD be the correct answer
A company needs high-bandwidth, low-latency access to Amazon S3 from on-premises for large data transfers, and the applications can use HTTPS or S3 APIs instead of SMB. The question would emphasize network performance and security, not caching or protocol compatibility.
Why candidates choose this
Candidates may think Direct Connect provides low latency and S3 is the storage target, overlooking the need for local caching and SMB protocol support that File Gateway provides.
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?”
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
Related to this question
About these practice questions
Courseiva writes every CLF-C02 question from scratch — 988 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.