Databricks Certified Data Engineer Professional Exam: Databricks-Certified-Data-Engineer-Professional Exam
"Databricks Certified Data Engineer Professional Exam", also known as Databricks-Certified-Data-Engineer-Professional exam, is a Databricks Certification. With the complete collection of questions and answers, iPassleader has assembled to take you through 250 Q&As to your Databricks-Certified-Data-Engineer-Professional Exam preparation. In the Databricks-Certified-Data-Engineer-Professional exam resources, you will cover every field and category in Databricks Certification Certification helping to ready you for your successful Databricks Certification.
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- Updated on: Sep 20, 2026
- No. of Questions: 250 Questions & Answers
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- Updated on: Sep 20, 2026
- No. of Questions: 250 Questions & Answers
In 2026, knowing the content and surviving the clock are two different skills. iPassleader's test engines train both, running Databricks-Certified-Data-Engineer-Professional practice questions under the same time pressure the Databricks Certified Data Engineer Professional exam applies.
Databricks Databricks-Certified-Data-Engineer-Professional Exam Overview:
| Certification Vendor: | Databricks |
|---|---|
| Exam Name: | Databricks Certified Data Engineer Professional Exam |
| Exam Number: | Databricks-Certified-Data-Engineer-Professional |
| Exam Duration: | 120 minutes |
| Exam Format: | Multiple choice, Multiple select, Proctored online exam, Scenario-based questions |
| Exam Price: | $200 USD |
| Certificate Validity Period: | 2 years |
| Passing Score: | 70% |
| Real Exam Qty: | 45-60 |
| Available Languages: | English |
| Related Certifications: | Databricks Certified Data Engineer Associate |
| Recommended Training: | Databricks Data Engineer Learning Path Delta Lake Fundamentals |
| Exam Registration: | Databricks Certification Portal Databricks Academy |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Online proctored exam via Databricks certification platform |
| Pre Condition: | Recommended: Databricks Certified Data Engineer Associate or equivalent hands-on experience with Spark and Delta Lake |
| Official Syllabus URL: | https://www.databricks.com/learn/certification/data-engineer-professional |
Databricks Databricks-Certified-Data-Engineer-Professional Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Databricks Lakehouse Platform Architecture | - Data governance concepts (Unity Catalog basics) - Medallion architecture (Bronze, Silver, Gold) - Workspace and cluster architecture |
| Topic 2: Data Modeling and Transformation | - Spark SQL transformations - Performance optimization techniques - Dimensional modeling concepts |
| Topic 3: Production Pipelines and Orchestration | - Error handling and recovery strategies - Job scheduling and monitoring - Databricks Workflows |
| Topic 4: Delta Lake and Data Management | - Schema evolution and enforcement - Time travel and versioning - Delta Lake transactions and ACID properties |
| Topic 5: Data Ingestion and Processing | - ETL pipeline design patterns - Structured Streaming fundamentals - Batch and streaming ingestion with Auto Loader |
Straight Answers About the Databricks Databricks-Certified-Data-Engineer-Professional Exam
The Databricks-Certified-Data-Engineer-Professional exam is Databricks's benchmark for awarding the Databricks Certified Data Engineer Professional certification, a credential positioned at the Professional level. It measures whether you can apply the Databricks Certified Data Engineer Professional objectives under exam conditions — not whether you recognize them in a textbook. It also connects to a wider certification path that includes Databricks Certified Data Engineer Associate, so the effort you invest here keeps paying off. That is exactly why preparation built on realistic questions outperforms passive reading.
The Databricks Certified Data Engineer Professional blueprint spans 5 domains, headlined by Production Pipelines and Orchestration, Delta Lake and Data Management, and Data Ingestion and Processing. Read the weightings as a budget: the domains carrying more of the score deserve more of your week. The complete topic list lives in the exam topics section above — plan against it, not against guesswork.
The Databricks Certified Data Engineer Professional exam gives you 120 minutes for 45-60 questions. Convert that into a rhythm before test day: minutes divided by questions is your per-item budget, and anything burning twice its budget gets flagged and revisited at the end. Rehearse the pacing under a real timer — every iPassleader engine session runs one — until finishing with spare review time becomes normal.
Passing Databricks Certified Data Engineer Professional requires 70%, and each attempt costs $200 USD — retakes included, at full price. The financially rational move is arriving over-prepared: drill with iPassleader practice questions until your timed scores clear the bar several sessions in a row, then register. That's not caution; it's refusing to pay for the same exam twice.
Databricks lists the Databricks Certified Data Engineer Professional question formats as: Multiple choice, Multiple select, Scenario-based questions, Proctored online exam. Formats are not trivia — they change how you read. For long scenario stems, find the actual question sentence first; for multi-answer items, verify every option you select. iPassleader's 250 practice questions cover these formats thoroughly, so on exam day only the content is new.
The Databricks-Certified-Data-Engineer-Professional exam is offered in English. Pick the language where your reading speed holds up under time pressure — in a timed exam, slow comprehension is a hidden tax on every question. If you test in English, daily work with iPassleader's English Databricks-Certified-Data-Engineer-Professional practice questions doubles as targeted vocabulary training.
The certification earned through the Databricks Certified Data Engineer Professional exam remains valid for 2 years. Note the expiry date early and research the recertification path well before it arrives — a planned renewal is an errand, an expired credential is a project. Databricks owns these policies, so confirm the current rules on the official certification page as your window approaches.
All three versions contain the same 250 expert-written questions — what you're choosing is a study environment:
- PDF version — printable, expert-prepared, instantly downloadable, readable anywhere, anytime. Includes 365 days of free updates and a free demo.
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Many candidates combine formats — the PDF for reading, an engine for timed rehearsal.
Yes. iPassleader's free Databricks Certified Data Engineer Professional PDF demo contains genuine sample questions with verified answers, so you can judge the quality before spending anything. Every purchase includes 365 days of free updates, and renewing after that costs 50% of the regular price from your member zone. Test-drive first — confident material has nothing to hide.
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Databricks Certified Data Engineer Professional Sample Questions:
Which statement describes Delta Lake Auto Compaction?
- A. Before a Jobs cluster terminates, optimize is executed on all tables modified during the most recent job.
- B. An asynchronous job runs after the write completes to detect if files could be further compacted; if yes, an optimize job is executed toward a default of 128 MB.
- C. Optimized writes use logical partitions instead of directory partitions; because partition boundaries are only represented in metadata, fewer small files are written.
- D. Data is queued in a messaging bus instead of committing data directly to memory; all data is committed from the messaging bus in one batch once the job is complete.
- E. An asynchronous job runs after the write completes to detect if files could be further compacted; if yes, an optimize job is executed toward a default of 1 GB.
Correct Answer: B 🗳️
Explanation: Only visible for iPassleader members. You can sign-up / login (it's free).
A junior data engineer has manually configured a series of jobs using the Databricks Jobs UI.
Upon reviewing their work, the engineer realizes that they are listed as the "Owner" for each job.
They attempt to transfer "Owner" privileges to the "DevOps" group, but cannot successfully accomplish this task.
Which statement explains what is preventing this privilege transfer?
- A. Other than the default "admins" group, only individual users can be granted privileges on jobs.
- B. A user can only transfer job ownership to a group if they are also a member of that group.
- C. Only workspace administrators can grant "Owner" privileges to a group.
- D. Databricks jobs must have exactly one owner; "Owner" privileges cannot be assigned to a group.
- E. The creator of a Databricks job will always have "Owner" privileges; this configuration cannot be changed.
Correct Answer: D 🗳️
Explanation: Only visible for iPassleader members. You can sign-up / login (it's free).
A data engineer is analyzing transactional data in a PySpark DataFrame df containing customer_id, transaction_timestamp (precise to milliseconds), and amount_spent. The objective is to compute a cumulative sum of amount_spent per customer, strictly ordered by transaction_timestamp. The cumulative sum must include all transactions from the earliest timestamp up to and including the current row, respecting temporal ordering within each customer partition. Which PySpark code snippet most accurately constructs the appropriate window specification and applies the aggregation to yield the correct cumulative expenditure per customer?
- A.

- B.

- C.

- D.

Correct Answer: B 🗳️
Explanation: Only visible for iPassleader members. You can sign-up / login (it's free).
A platform engineer is creating catalogs and schemas for the development team to use.
The engineer has created an initial catalog, catalog_A, and initial schema, schema_A. The engineer has also granted USE CATALOG, USE SCHEMA, and CREATE TABLE to the development team so that the engineer can begin populating the schema with new tables.
Despite being owner of the catalog and schema, the engineer noticed that they do not have access to the underlying tables in Schema_A.
What explains the engineer's lack of access to the underlying tables?
- A. The owner of the schema does not automatically have permission to tables within the schema, but can grant them to themselves at any point.
- B. Users granted with USE CATALOG can modify the owner's permissions to downstream tables.
- C. The platform engineer needs to execute a REFRESH statement as the table permissions did not automatically update for owners.
- D. Permissions explicitly given by the table creator are the only way the Platform Engineer could access the underlying tables in their schema.
Correct Answer: A 🗳️
Explanation: Only visible for iPassleader members. You can sign-up / login (it's free).
A data engineer is designing a system to process batch patient encounter data stored in an S3 bucket, creating a Delta table (patient_encounters) with columns encounter_id, patient_id, encounter_date, diagnosis_code, and treatment_cost. The table is queried frequently by patient_id and encounter_date, requiring fast performance. Fine-grained access controls must be enforced. The engineer wants to minimize maintenance and boost performance. How should the data engineer create the patient_encounters table?
- A. Create a managed table in Hive Metastore. Configure Hive Metastore permissions for access controls, and rely on predictive optimization to enhance query performance and simplify maintenance.
- B. Create a managed table in Unity Catalog. Configure Unity Catalog permissions for access controls, schedule jobs to run OPTIMIZE and VACUUM commands daily to achieve best performance.
- C. Create a managed table in Unity Catalog. Configure Unity Catalog permissions for access controls, and rely on predictive optimization to enhance query performance and simplify maintenance.
- D. Create an external table in Unity Catalog, specifying an S3 location for the data files. Enable predictive optimization through table properties, and configure Unity Catalog permissions for access controls.
Correct Answer: C 🗳️
Explanation: Only visible for iPassleader members. You can sign-up / login (it's free).
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