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  • Exam Code: Certified-Data-Engineer-Professional
  • Exam Name: Databricks Certified Data Engineer Professional
  • Updated: Aug 26, 2026
  • Q & A: 250 Questions and Answers
  • PDF Price: $59.99
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  • Exam Code: Certified-Data-Engineer-Professional
  • Exam Name: Databricks Certified Data Engineer Professional
  • Updated: Aug 26, 2026
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Databricks Certified-Data-Engineer-Professional Exam Syllabus Topics:

SectionObjectives
Topic 1: Data Sharing and Federation- Lakehouse Federation
  • 1. Configure Lakehouse Federation with appropriate governance
    - Delta Sharing
    • 1. Configure Databricks-to-Databricks Sharing
      • 2. Configure sharing with external platforms using the open sharing protocol
        • 3. Share live Lakehouse data with external computing platforms
          Topic 2: Developing Code for Data Processing using Python and SQL- Using Python and Tools for Development
          • 1. Develop User-Defined Functions using Pandas/Python UDFs
            • 2. Design and implement scalable Python project structures optimized for Databricks Asset Bundles
              • 3. Manage and troubleshoot third-party library installations and dependencies
                - Building and Testing ETL Pipelines
                • 1. Compare streaming tables and materialized views
                  • 2. Build production-ready batch and streaming pipelines using Lakeflow Spark Declarative Pipelines and Auto Loader
                    • 3. Develop unit and integration tests for data processing code
                      • 4. Use control flow operators in pipeline components
                        • 5. Compare Spark Structured Streaming and Lakeflow Spark Declarative Pipelines
                          • 6. Configure environments, dependencies, memory, and retry behavior
                            • 7. Create and automate ETL workloads using Jobs through UI, APIs, and CLI
                              • 8. Use APPLY CHANGES APIs for change data capture
                                Topic 3: Data Transformation, Cleansing, and Quality- Data Quality
                                • 1. Develop data quarantining processes for invalid data
                                  • 2. Apply data quality controls using Lakeflow Spark Declarative Pipelines or Auto Loader
                                    - Advanced Data Transformation
                                    • 1. Apply window functions, joins, and aggregations to large datasets
                                      • 2. Write efficient Spark SQL and PySpark transformations
                                        Topic 4: Data Ingestion & Acquisition- Design and implement data ingestion pipelines
                                        • 1. Ingest data from message buses and cloud storage
                                          • 2. Build append-only pipelines for batch and streaming data using Delta
                                            • 3. Ingest Delta Lake, Parquet, ORC, Avro, JSON, CSV, XML, Text, and Binary data
                                              Topic 5: Ensuring Data Security and Compliance- Compliance
                                              • 1. Implement pipelines that detect and mask personally identifiable information
                                                • 2. Develop data purging solutions according to data retention policies
                                                  - Data Security
                                                  • 1. Use row filters and column masks for sensitive data
                                                    • 2. Apply anonymization and pseudonymization techniques
                                                      • 3. Use ACLs to secure workspace objects and enforce least privilege
                                                        Topic 6: Monitoring and Alerting- Alerting
                                                        • 1. Configure Lakeflow Jobs notifications for job status and performance issues
                                                          • 2. Use SQL Alerts for data quality monitoring
                                                            - Monitoring
                                                            • 1. Use Query Profiler and Spark UI to monitor workloads
                                                              • 2. Use system tables for resource, cost, audit, and workload monitoring
                                                                • 3. Use Lakeflow Spark Declarative Pipelines event logs for monitoring
                                                                  • 4. Use Databricks REST APIs and CLI for monitoring jobs and pipelines
                                                                    Topic 7: Cost & Performance Optimisation- Cost Optimization
                                                                    • 1. Understand how Unity Catalog managed tables reduce operational overhead
                                                                      - Delta Optimization
                                                                      • 1. Use Change Data Feed to address streaming table limitations and improve latency
                                                                        • 2. Apply data skipping and file pruning techniques
                                                                          • 3. Understand deletion vectors and liquid clustering
                                                                            - Query Performance
                                                                            • 1. Use Query Profile to identify performance bottlenecks
                                                                              • 2. Identify inefficient joins and excessive data shuffling
                                                                                Topic 8: Data Modelling- Scalable Data Models
                                                                                • 1. Understand Liquid Clustering versus partitioning and Z-Ordering
                                                                                  • 2. Design and implement scalable data models using Delta Lake
                                                                                    • 3. Optimize data layout using Liquid Clustering
                                                                                      - Dimensional Modelling
                                                                                      • 1. Design dimensional models for analytical workloads
                                                                                        Topic 9: Data Governance- Unity Catalog Permissions
                                                                                        • 1. Understand the Unity Catalog permission inheritance model
                                                                                          - Metadata and Discoverability
                                                                                          • 1. Create and maintain descriptions and metadata for enterprise data
                                                                                            Topic 10: Debugging and Deploying- Debugging and Troubleshooting
                                                                                            • 1. Use Spark UI, cluster logs, system tables, and query profiles for diagnostics
                                                                                              • 2. Analyze errors and remediate failed job runs
                                                                                                • 3. Use Lakeflow Spark Declarative Pipelines event logs and Spark UI for debugging
                                                                                                  - Deploying CI/CD
                                                                                                  • 1. Build and deploy Databricks resources using Databricks Asset Bundles
                                                                                                    • 2. Integrate Git-based CI/CD workflows using Databricks Git Folders

                                                                                                      Databricks Certified Data Engineer Professional Sample Questions:

                                                                                                      1. A data engineer is configuring a Databricks Asset Bundle to deploy a job with granular permissions.
                                                                                                      The requirements are:
                                                                                                      - Grant the data-engineers group CAN_MANAGE access to the job.
                                                                                                      - Ensure the auditors' group can view the job but not modify/run it.
                                                                                                      - Avoid granting unintended permissions to other users/groups.
                                                                                                      How should the data engineer deploy the job while meeting the requirements?

                                                                                                      A) resources:
                                                                                                      jobs:
                                                                                                      my-job:
                                                                                                      name: data-pipeline
                                                                                                      tasks: [...]
                                                                                                      job: [...]
                                                                                                      permissions:
                                                                                                      - group_name: data-engineers
                                                                                                      level: CAN_MANAGE
                                                                                                      permissions:
                                                                                                      - group_name: auditors
                                                                                                      level: CAN_VIEW
                                                                                                      B) permissions:
                                                                                                      - group_name: data-engineers
                                                                                                      level: CAN_MANAGE
                                                                                                      - group_name: auditors
                                                                                                      level: CAN_VIEW
                                                                                                      resources:
                                                                                                      jobs:
                                                                                                      my-job:
                                                                                                      name: data-pipeline
                                                                                                      tasks: [...]
                                                                                                      job_clusters: [...]
                                                                                                      C) resources:
                                                                                                      jobs:
                                                                                                      my-job:
                                                                                                      name: data-pipeline
                                                                                                      tasks: [...]
                                                                                                      job_clusters: [...]
                                                                                                      permissions:
                                                                                                      - group_name: data-engineers
                                                                                                      level: CAN_MANAGE
                                                                                                      - group_name: auditors
                                                                                                      level: CAN_VIEW
                                                                                                      D) resources:
                                                                                                      jobs:
                                                                                                      my-job:
                                                                                                      name: data-pipeline
                                                                                                      tasks: [...]
                                                                                                      job_clusters: [...]
                                                                                                      permissions:
                                                                                                      - group_name: data-engineers
                                                                                                      level: CAN_MANAGE
                                                                                                      - group_name: auditors
                                                                                                      level: CAN_VIEW
                                                                                                      - group_name: admin-team
                                                                                                      level: IS_OWNER


                                                                                                      2. Which statement regarding stream-static joins and static Delta tables is correct?

                                                                                                      A) Each microbatch of a stream-static join will use the most recent version of the static Delta table as of the job's initialization.
                                                                                                      B) Each microbatch of a stream-static join will use the most recent version of the static Delta table as of each microbatch.
                                                                                                      C) Stream-static joins cannot use static Delta tables because of consistency issues.
                                                                                                      D) The checkpoint directory will be used to track state information for the unique keys present in the join.
                                                                                                      E) The checkpoint directory will be used to track updates to the static Delta table.


                                                                                                      3. When scheduling Structured Streaming jobs for production, which configuration automatically recovers from query failures and keeps costs low?

                                                                                                      A) Cluster: New Job Cluster;
                                                                                                      Retries: None;
                                                                                                      Maximum Concurrent Runs: 1
                                                                                                      B) Cluster: New Job Cluster;
                                                                                                      Retries: Unlimited;
                                                                                                      Maximum Concurrent Runs: Unlimited
                                                                                                      C) Cluster: Existing All-Purpose Cluster;
                                                                                                      Retries: Unlimited;
                                                                                                      Maximum Concurrent Runs: 1
                                                                                                      D) Cluster: Existing All-Purpose Cluster;
                                                                                                      Retries: Unlimited;
                                                                                                      Maximum Concurrent Runs: 1
                                                                                                      E) Cluster: Existing All-Purpose Cluster;
                                                                                                      Retries: None;
                                                                                                      Maximum Concurrent Runs: 1


                                                                                                      4. A data engineer is evaluating tools to build a production-grade data pipeline. The team must process change data from cloud object storage, filter out or isolate invalid records, and ensure the timely delivery of clean data to downstream consumers. The team is small, under tight deadlines, and wants to minimize operational overhead while keeping pipelines auditable and maintainable.
                                                                                                      Which approach should the data engineer implement?

                                                                                                      A) Use LDP to build declarative pipelines with Streaming Tables and Materialized Views, leveraging built-in support for data expectations and incremental processing.
                                                                                                      B) Implement ingestion using Auto Loader with Structured Streaming, and manage invalid data handling and table updates using checkpointing and merge logic.
                                                                                                      C) Ingest data directly into Delta tables via Spark jobs, apply data quality filters using UDFs, and use LDP for creating Materialized Views.
                                                                                                      D) Use a hybrid approach: Ingest with Auto Loader into Bronze tables, then process using SQL queries in Databricks Workflows to generate cleaned Silver and Gold tables on a schedule.


                                                                                                      5. An analytics team wants to run a short-term experiment in Databricks SQL on the customer transactions Delta table (about 20 billion records) created by the data engineering team. Which strategy should the data engineering team use to ensure minimal downtime and no impact on the ongoing ETL processes?

                                                                                                      A) Deep clone the table for the analytics team.
                                                                                                      B) Give the analytics team direct access to the production table.
                                                                                                      C) Shallow clone the table for the analytics team.
                                                                                                      D) Create a new table for the analytics team using a CTAS statement.


                                                                                                      Solutions:

                                                                                                      Question # 1
                                                                                                      Answer: C
                                                                                                      Question # 2
                                                                                                      Answer: B
                                                                                                      Question # 3
                                                                                                      Answer: C
                                                                                                      Question # 4
                                                                                                      Answer: A
                                                                                                      Question # 5
                                                                                                      Answer: C

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