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Databricks Certified-Data-Engineer-Professional Exam Overview:

Certification Vendor:Databricks
Exam Name:Databricks Certified Data Engineer Professional
Exam Number:Certified-Data-Engineer-Professional
Exam Format:Online proctored, Test center proctored, Multiple-choice questions
Real Exam Qty:59 scored multiple-choice questions
Exam Duration:120 minutes
Certificate Validity Period:2 years
Exam Price:USD 200 plus applicable taxes
Related Certifications:Databricks Certified Data Engineer Associate
Available Languages:English
Recommended Training:Advanced Data Engineering with Databricks
Databricks Academy
Exam Registration:Databricks Certified Data Engineer Professional Certification
Sample Questions:Databricks Certified-Data-Engineer-Professional Sample Questions
Exam Way:Online proctored or test center proctored
Pre Condition:No prerequisite is required. Related course attendance and one year of hands-on experience in data engineering tasks covered by the exam are highly recommended.
Official Syllabus URL:https://www.databricks.com/sites/default/files/2025-11/databricks-certified-data-engineer-professional-exam-guide-november-30-2025.pdf

Databricks Certified-Data-Engineer-Professional Exam Syllabus Topics:

SectionObjectives
Topic 1: Data Governance- Govern enterprise data
  • 1. Demonstrate understanding of the Unity Catalog permission inheritance model
    • 2. Create and add descriptions and metadata to enterprise data to improve discoverability
      Topic 2: Debugging and Deploying- Deploying CI/CD
      • 1. Build and deploy Databricks resources using Databricks Asset Bundles
        • 2. Configure and integrate Git-based CI/CD workflows using Databricks Git folders for notebook and code deployment
          - Debugging and Troubleshooting
          • 1. Use Lakeflow Declarative Pipelines event logs and Spark UI to debug Lakeflow Declarative Pipelines and Spark pipelines
            • 2. Analyze errors and remediate failed job runs using job repairs and parameter overrides
              • 3. Identify diagnostic information using Spark UI, cluster logs, system tables, and query profiles to troubleshoot errors
                Topic 3: Data Ingestion & Acquisition- Design and implement data ingestion pipelines
                • 1. Create an append-only data pipeline capable of handling both batch and streaming data using Delta
                  • 2. Ingest formats including Delta Lake, Parquet, ORC, AVRO, JSON, CSV, XML, text, and binary data from sources such as message buses and cloud storage
                    Topic 4: Ensuring Data Security and Compliance- Applying Data Security Mechanisms
                    • 1. Apply anonymization and pseudonymization methods including hashing, tokenization, suppression, and generalization
                      • 2. Use row filters and column masks to protect sensitive table data
                        • 3. Use ACLs to secure workspace objects and enforce the principle of least privilege
                          - Ensuring Compliance
                          • 1. Develop data purging solutions that comply with data retention policies
                            • 2. Implement compliant batch and streaming pipelines that detect and mask PII
                              Topic 5: Data Sharing and Federation- Share and federate data
                              • 1. Use Delta Sharing to share live data from the Lakehouse with any computing platform
                                • 2. Demonstrate secure Delta Sharing between Databricks deployments using Databricks-to-Databricks sharing or with external platforms using the open sharing protocol
                                  • 3. Configure Lakehouse Federation with appropriate governance across supported source systems
                                    Topic 6: Monitoring and Alerting- Alerting
                                    • 1. Use the Workflows UI and Jobs API to configure notifications for job status and performance issues
                                      • 2. Use SQL Alerts to monitor data quality
                                        - Monitoring
                                        • 1. Use Databricks REST APIs and Databricks CLI to monitor jobs and pipelines
                                          • 2. Use system tables for observability of resource utilization, cost, auditing, and workloads
                                            • 3. Use Query Profile and Spark UI to monitor workloads
                                              • 4. Use Lakeflow Declarative Pipelines event logs to monitor pipelines
                                                Topic 7: Cost & Performance Optimization- Optimize cost and performance
                                                • 1. Use query profiling to identify bottlenecks such as inefficient joins and data shuffling
                                                  • 2. Understand Delta optimization techniques such as deletion vectors and liquid clustering
                                                    • 3. Understand Databricks query optimization techniques for large datasets, including data skipping and file pruning
                                                      • 4. Understand how and why Unity Catalog managed tables reduce operational overhead and maintenance burden
                                                        • 5. Apply Change Data Feed to address streaming table limitations and improve latency
                                                          Topic 8: Data Modeling- Design and optimize data models
                                                          • 1. Design and implement scalable data models using Delta Lake to manage large datasets
                                                            • 2. Identify the benefits of liquid clustering over partitioning and Z-Ordering
                                                              • 3. Design dimensional models for analytical workloads with efficient querying and aggregation
                                                                • 4. Simplify data layout decisions and optimize query performance using liquid clustering
                                                                  Topic 9: Data Transformation, Cleansing, and Quality- Transform and validate data
                                                                  • 1. Develop a quarantining process for bad data with Lakeflow Declarative Pipelines or Auto Loader in classic jobs
                                                                    • 2. Write efficient Spark SQL and PySpark code for advanced transformations including window functions, joins, and aggregations
                                                                      Topic 10: Developing Code for Data Processing using Python and SQL- Using Python and Tools for Development
                                                                      • 1. Design and implement a scalable Python project structure optimized for Databricks Asset Bundles, enabling modular development, deployment automation, and CI/CD integration
                                                                        • 2. Manage and troubleshoot external third-party library installations and dependencies, including PyPI packages, local wheels, and source archives
                                                                          • 3. Develop User-Defined Functions using Pandas/Python UDF
                                                                            - Building and Testing an ETL Pipeline with Lakeflow Declarative Pipelines, SQL, and Apache Spark
                                                                            • 1. Choose appropriate configurations for environments, dependencies, high-memory notebook tasks, and retry behavior
                                                                              • 2. Explain the advantages and disadvantages of streaming tables compared to materialized views
                                                                                • 3. Create and automate ETL workloads using Jobs through the UI, APIs, or CLI
                                                                                  • 4. Create pipeline components using control flow operators such as if/else and foreach
                                                                                    • 5. Use APPLY CHANGES APIs to simplify CDC in Lakeflow Declarative Pipelines
                                                                                      • 6. Develop unit and integration tests using assertDataFrameEqual, assertSchemaEqual, DataFrame.transform, testing frameworks, and debugging tools
                                                                                        • 7. Build and manage reliable, production-ready batch and streaming data pipelines using Lakeflow Declarative Pipelines and Auto Loader
                                                                                          • 8. Compare Spark Structured Streaming and Lakeflow Declarative Pipelines to determine the optimal approach for scalable ETL pipelines

                                                                                            Databricks Certified Data Engineer Professional Sample Questions:

                                                                                            Question #1

                                                                                            A Delta Lake table representing metadata about content from user has the following schema:
                                                                                            user_id LONG, post_text STRING, post_id STRING, longitude FLOAT, latitude FLOAT, post_time TIMESTAMP, date DATE Based on the above schema, which column is a good candidate for partitioning the Delta Table?

                                                                                            • A. Date
                                                                                            • B. Post_id
                                                                                            • C. latitude
                                                                                            • D. User_id
                                                                                            • E. Post_time
                                                                                            Reveal Solution  Discussion  0

                                                                                            Correct Answer: A  🗳️

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                                                                                            Question #2

                                                                                            A Databricks job has been configured with 3 tasks, each of which is a Databricks notebook. Task A does not depend on other tasks. Tasks B and C run in parallel, with each having a serial dependency on Task A.
                                                                                            If task A fails during a scheduled run, which statement describes the results of this run?

                                                                                            • A. Tasks B and C will attempt to run as configured; any changes made in task A will be rolled back due to task failure.
                                                                                            • B. Because all tasks are managed as a dependency graph, no changes will be committed to the Lakehouse until all tasks have successfully been completed.
                                                                                            • C. Tasks B and C will be skipped; some logic expressed in task A may have been committed before task failure.
                                                                                            • D. Unless all tasks complete successfully, no changes will be committed to the Lakehouse; because task A failed, all commits will be rolled back automatically.
                                                                                            • E. Tasks B and C will be skipped; task A will not commit any changes because of stage failure.
                                                                                            Reveal Solution  Discussion  0

                                                                                            Correct Answer: C  🗳️

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                                                                                            Question #3

                                                                                            A data team is automating a daily multi-task ETL pipeline in Databricks. The pipeline includes a notebook for ingesting raw data, a Python wheel task for data transformation, and a SQL query to update aggregates. They want to trigger the pipeline programmatically and see previous runs in the GUI. They need to ensure tasks are retried on failure and stakeholders are notified by email if any task fails. Which two approaches will meet these requirements? (Choose two.)

                                                                                            • A. Use the REST API endpoint /jobs/runs/submit to trigger each task individually as separate job runs and implement retries using custom logic in the orchestrator.
                                                                                            • B. Trigger the job programmatically using the Databricks Jobs REST API (/jobs/run-now), the CLI (databricks jobs run-now), or one of the Databricks SDKs.
                                                                                            • C. Create a multi-task job using the UI, Databricks Asset Bundles (DABs), or the Jobs REST API (/jobs/create) with notebook, Python wheel, and SQL tasks. Configure task-level retries and email notifications in the job definition.
                                                                                            • D. Use Databricks Asset Bundles (DABs) to deploy the workflow, then trigger individual tasks directly by referencing each task's notebook or script path in the workspace.
                                                                                            • E. Create a single orchestrator notebook that calls each step with dbutils.notebook.run(), defining a job for that notebook and configuring retries and notifications at the notebook level.
                                                                                            Reveal Solution  Discussion  0

                                                                                            Correct Answer: B,C  🗳️

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                                                                                            Question #4

                                                                                            A data team is implementing an append-only Delta Lake pipeline that processes both batch and streaming data. They want to ensure that schema changes in the source data are automatically incorporated without breaking the pipeline. Which configuration should the team use when writing data to the Delta table?

                                                                                            • A. mergeSchema = true
                                                                                            • B. ignoreChanges = false
                                                                                            • C. validateSchema = false
                                                                                            • D. overwriteSchema = true
                                                                                            Reveal Solution  Discussion  0

                                                                                            Correct Answer: A  🗳️

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                                                                                            Question #5

                                                                                            A platform team lead is responsible for automating the individual teams attribution towards SQL Warehouse usage. The requirement is to identify the SQL warehouse usage at the individual user's level and generate a daily report to be shared with an executive team that includes leaders from all business units. How should the platform lead generate an automated report that can be shared daily?

                                                                                            • A. Use the system tables to capture the audit and billing usage data and share the queries with the executive team. This enables the executives to execute the query and see the latest results any time.
                                                                                            • B. Use the system tables to capture the audit and billing usage data and create a dashboard with daily refresh schedules and shared with the executive team.
                                                                                            • C. Let the users run the SQL query and then directly report the usage to the executives. The ownership of the SQL warehouse usage will be with the individual teams.
                                                                                            • D. Restrict users from running any SQL query unless they provide all the query details so that the attribution can be calculated and shared with the executive team.
                                                                                            Reveal Solution  Discussion  0

                                                                                            Correct Answer: B  🗳️

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