Register
Question 1
A data engineering team is building a data lake on a major cloud platform. The primary requirement is to store massive volumes of raw, semi-structured (JSON logs) and unstructured (images, videos) data in its native format. Which cloud storage solution is most appropriate for the foundational layer of this data lake?
Correct Answer:
Object Storage (e.g., Amazon S3, Google Cloud Storage, Azure Blob Storage)
Question 2
Modern cloud data warehouses like Snowflake, BigQuery, and Redshift are often designed with an architecture that separates two key functions to allow for independent scaling and cost management. Which two functions are these?
Correct Answer:
Storage and compute
Question 3
A fast-growing e-commerce company is designing the backend for its product catalog. The system must handle a high volume of read requests with very low latency. Product attributes vary significantly between categories, so a flexible schema is essential. Which type of cloud data store is the best fit for this use case?
Correct Answer:
A document-oriented NoSQL database (e.g., MongoDB Atlas, Firestore)
Question 4
Which of the following statements most accurately describes the primary difference between a data lake and a data warehouse in terms of data structure?
Correct Answer:
A data lake stores raw data in its native format, applying structure during analysis ("schema-on-read").
Question 5
A financial services company is required by law to retain transaction logs for seven years. For the first 90 days, the logs are frequently accessed for reporting. After 90 days, access becomes rare, but the data must be retrievable. To optimize storage costs, which strategy should a data engineer implement using cloud object storage?
Correct Answer:
Implement a lifecycle policy to transition data from a standard access tier to an archival tier after 90 days.
Question 1
Exam overview

About this Exam

Prepare with the AWS Certified Data Engineer – Associate (DEA-C01) practice quiz. This question bank includes 65 questions covering data, primary, company, schema, and team. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

More details

Additional Information

AWS Certified Data Engineer – Associate (DEA-C01)

This practice set contains 65 questions from the matching question bank and focuses on data, primary, company, schema, and team. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Quiz information

Frequently Asked Questions

The complete question count is available after full access is unlocked.
No fixed duration is currently configured for this quiz.
Question explanations are included where they are available in the quiz content, helping you review the reasoning after answering.
Yes. You can retake the practice test again as you continue studying during your available access period.
After your access is confirmed, you can continue into the complete practice exam from this quiz flow.
Unless explicitly stated otherwise, this page provides independent practice material for study and exam preparation and is not the official examination itself.
Keep studying

Related Questions

ISC2 Certified in Cybersecurity Practice Exam

0 min

10th Brigade Engineer Battalion (10BEB) Board Practice Exam

0 min

2nd Class Power Engineering (2A1) Practice Exam

0 min

2nd Class Power Engineering 2A3 Practice Exam

0 min

2nd Class Power Engineering (2B1) Practice Exam

0 min

2nd Class Power Engineering 2B2 Practice Exam

0 min