- A
Amazon RDS
Why wrong: RDS is a managed relational database that requires data to be loaded into the database. It requires server provisioning and does not query S3 directly.
- B
Amazon Redshift
Why wrong: Redshift is a data warehouse that requires loading data into Redshift clusters. While Redshift Spectrum can query S3, the core Redshift cluster must be provisioned.
- C
Amazon Athena
Athena is a serverless service that queries data directly in S3 using standard SQL. No database loading or server provisioning is required — the analyst defines a schema over the S3 data and runs SQL immediately.
- D
Amazon DynamoDB
Why wrong: DynamoDB is a NoSQL database that requires data to be inserted. It does not query data stored in S3 and requires server capacity provisioning through read/write capacity units.
Quick Answer
The answer is Amazon Athena. This is the correct choice because Athena is a serverless interactive query service that lets you run standard SQL directly against data stored in Amazon S3 without provisioning any servers or loading data into a database. It works by scanning the log files in place, charging only for the data read per query, which makes it ideal for ad-hoc analysis of S3 data with SQL serverless. On the AWS Certified Cloud Practitioner CLF-C02 exam, this question tests your understanding of serverless analytics services and how they differ from traditional database solutions like Amazon RDS or Redshift. A common trap is confusing Athena with Amazon Redshift Spectrum, but remember that Athena requires no cluster setup at all. Memory tip: think of Athena as the Greek goddess of wisdom—she queries your S3 data wisely without needing a server to sit on.
CLF-C02 Cloud Technology and Services Practice Question
This CLF-C02 practice question tests your understanding of cloud technology and services. 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 data analyst needs to run SQL queries directly against log files stored in Amazon S3 without loading the data into a database and without provisioning any servers. Which AWS service enables this?
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
Amazon Athena
Amazon Athena is a serverless interactive query service that allows you to analyze data directly in Amazon S3 using standard SQL. It requires no infrastructure to manage and charges only for the data scanned per query, making it ideal for ad-hoc analysis of log files without loading data into a database.
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.
- ✗
Amazon RDS
Why it's wrong here
RDS is a managed relational database that requires data to be loaded into the database. It requires server provisioning and does not query S3 directly.
- ✗
Amazon Redshift
Why it's wrong here
Redshift is a data warehouse that requires loading data into Redshift clusters. While Redshift Spectrum can query S3, the core Redshift cluster must be provisioned.
- ✓
Amazon Athena
Why this is correct
Athena is a serverless service that queries data directly in S3 using standard SQL. No database loading or server provisioning is required — the analyst defines a schema over the S3 data and runs SQL immediately.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Amazon DynamoDB
Why it's wrong here
DynamoDB is a NoSQL database that requires data to be inserted. It does not query data stored in S3 and requires server capacity provisioning through read/write capacity units.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Amazon Athena with Amazon Redshift Spectrum, but the question explicitly states 'without provisioning any servers,' which eliminates Redshift because it requires a provisioned cluster even when using Spectrum.
Detailed technical explanation
How to think about this question
Athena uses Presto under the hood, a distributed SQL query engine, and leverages the Hive Metastore for schema-on-read, allowing it to infer table schemas from data formats like CSV, JSON, Parquet, and ORC stored in S3. A real-world scenario is querying terabytes of CloudTrail logs or VPC Flow Logs directly from S3 without any ETL pipeline, enabling cost-effective security analysis.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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.
- →
Cloud Technology and Services — study guide chapter
Learn the concepts, then practise the questions
- →
Cloud Technology and Services practice questions
Targeted practice on this topic area only
- →
All CLF-C02 questions
1,024 questions across all exam domains
- →
AWS Certified Cloud Practitioner CLF-C02 study guide
Full concept coverage aligned to exam objectives
- →
CLF-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related CLF-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Cloud Concepts practice questions
Practise CLF-C02 questions linked to Cloud Concepts.
Security and Compliance practice questions
Practise CLF-C02 questions linked to Security and Compliance.
Cloud Technology and Services practice questions
Practise CLF-C02 questions linked to Cloud Technology and Services.
Billing, Pricing, and Support practice questions
Practise CLF-C02 questions linked to Billing, Pricing, and Support.
AWS shared responsibility model practice questions
Practise CLF-C02 questions linked to AWS shared responsibility model.
AWS IAM practice questions
Practise CLF-C02 questions linked to AWS IAM.
AWS pricing practice questions
Practise CLF-C02 questions linked to AWS pricing.
AWS support plans practice questions
Practise CLF-C02 questions linked to AWS support plans.
AWS S3 practice questions
Practise CLF-C02 questions linked to AWS S3.
AWS EC2 practice questions
Practise CLF-C02 questions linked to AWS EC2.
Practice this exam
Start a free CLF-C02 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this CLF-C02 question test?
Cloud Technology and Services — This question tests Cloud Technology and Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Amazon Athena — Amazon Athena is a serverless interactive query service that allows you to analyze data directly in Amazon S3 using standard SQL. It requires no infrastructure to manage and charges only for the data scanned per query, making it ideal for ad-hoc analysis of log files without loading data into a database.
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 →
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.