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Free DATABRICKS-DEA Practice Questions

10 free, exam-style Databricks Certified Data Engineer Associate (DATABRICKS-DEA) practice questions with answers and explanations. No signup required. Work through them below, then take the full free DATABRICKS-DEA practice test to study every exam domain.

Question 1

Which component of the Databricks architecture is responsible for hosting the web application, notebook interface, and job scheduler?

  1. Control plane
  2. Data plane
  3. Customer VPC
  4. Cloud object storage
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Correct answer: A - Control plane

Question 2

A data engineer wants to ensure that patient health records never leave their organization's cloud account. In the Databricks architecture, where is customer data stored?

  1. In the Databricks control plane alongside notebook commands
  2. In the customer's own cloud account within the data plane
  3. In a shared multi-tenant Databricks storage layer
  4. In the Databricks-managed metadata store
Show answer & explanation

Correct answer: B - In the customer's own cloud account within the data plane

Question 3

Which of the following is hosted entirely within the Databricks control plane?

  1. Worker nodes running Spark executors
  2. Delta table data files in cloud storage
  3. The Databricks web application and REST APIs
  4. Customer-managed encryption keys
Show answer & explanation

Correct answer: C - The Databricks web application and REST APIs

Question 4

A security team asks where Databricks stores the actual data files for Delta tables. Which statement is correct?

  1. Data files are stored in the Databricks control plane for fast access
  2. Data files are stored in a Databricks-managed S3 bucket
  3. Data files are split between the control plane and data plane
  4. Data files are stored in the customer's cloud object storage in the data plane
Show answer & explanation

Correct answer: D - Data files are stored in the customer's cloud object storage in the data plane

Question 5

What is the PRIMARY relationship between the Databricks control plane and data plane?

  1. The control plane sends commands and the data plane executes them on customer infrastructure
  2. The control plane stores data and the data plane processes it
  3. Both planes share equal responsibility for data storage and computation
  4. The data plane manages the UI while the control plane runs compute
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Correct answer: A - The control plane sends commands and the data plane executes them on customer infrastructure

Question 6

Which of the following resides in the Databricks data plane?

  1. Job scheduler
  2. Compute resources (virtual machines)
  3. Notebook user interface
  4. Cluster management service
Show answer & explanation

Correct answer: B - Compute resources (virtual machines)

Question 7

A data engineer is explaining Databricks architecture to a new team member. Which statement accurately describes the workspace?

  1. A workspace is a single notebook within a project folder
  2. A workspace is a synonym for a single Spark cluster
  3. A workspace is the primary collaborative environment for organizing notebooks, repos, jobs, and compute resources
  4. A workspace is the customer's cloud storage account
Show answer & explanation

Correct answer: C - A workspace is the primary collaborative environment for organizing notebooks, repos, jobs, and compute resources

Question 8

Which of the following is NOT an asset that can be organized within a Databricks workspace?

  1. Notebooks
  2. SQL Warehouses
  3. Repos with Git integration
  4. Cloud VPC network configurations
Show answer & explanation

Correct answer: D - Cloud VPC network configurations

Question 9

An organization operates in multiple geographic regions and needs strict data isolation between teams. Which Databricks deployment approach supports this requirement?

  1. Deploying multiple workspaces with separate data planes per region
  2. Using a single workspace with folder-level permissions
  3. Creating multiple clusters within a single workspace
  4. Using Delta Sharing to isolate data across regions
Show answer & explanation

Correct answer: A - Deploying multiple workspaces with separate data planes per region

Question 10

Which layer of the Databricks architecture manages cluster lifecycle operations such as starting, stopping, and autoscaling?

  1. Data plane
  2. Control plane
  3. Unity Catalog
  4. Cloud provider's native orchestrator
Show answer & explanation

Correct answer: B - Control plane

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