Simulate the real Databricks Certified Data Engineer Professional exam with full-length timed sessions. Questions drawn proportionally from all 10 official blueprint domains — the same mix you'll face on test day.
Simulate real exam conditions
For the most realistic Databricks-DE-Pro simulation, start a 60 or 120-question session, put away all notes, set a timer matching the real exam duration (90 minutes), and commit to each answer before moving forward. This trains the time management and decision-making skills the real exam tests.
This free Databricks-DE-Pro mock exam uses the same question distribution as the real Databricks Certified Data Engineer Professional exam. Each session draws questions proportionally from all 10 official blueprint domains published by Databricks, so the topic mix you see accurately reflects what you'll face on test day.
Databricks-DE-Pro Domain Distribution
Data Ingestion and Acquisition
Data Governance
Monitoring and Alerting
Debugging and Deploying
Data Security and Compliance
Data Sharing and Federation
Developing Code (Python/SQL)
Data Transformation, Cleansing, Quality
Data Modelling
Cost and Performance Optimization
Every question is checked against the 2026 Databricks-DE-Proexam objectives and published under the editorial oversight of an engineer with 12+ years' experience. These are original practice questions — not dumps — so you build real understanding rather than memorising answers.
Both the mock exam and practice test use the same question bank. The difference is in how you use them — and when to use each during your Databricks-DE-Pro study plan.
Practice test — for learning
Use the Databricks-DE-Pro practice test when you are studying a domain. Answer questions, read every explanation immediately, and build understanding. Do 10–30 questions per domain per session. This is your primary study tool for the first 4 weeks.
Go to practice test →Mock exam — for simulation
Use the Databricks-DE-Pro mock exam in the final 1–2 weeks before your test date. Complete a 60 or 120-question session without stopping, manage your time, then review all results at the end. This builds exam-day stamina and surfaces final weak spots.
Start 120-question mock →Try these sample questions from the mock exam bank. Commit to an answer before revealing the explanation.
Refer to the exhibit. You are using Auto Loader to ingest data with evolving schemas. After running the job for a week, you realize that new columns added to the source JSON are not being captured in the destination table. What must you add to the configuration?
Select an answer to reveal the explanation
A data engineer needs to restrict access to personally identifiable information (PII) columns in a Unity Catalog table for a group of analysts. Which Unity Catalog feature should be used to enforce this policy while ensuring data remains queryable?
Select an answer to reveal the explanation
A Data Engineer needs to monitor the health of a Delta Live Tables (DLT) pipeline. Which metric should they monitor to track the number of data quality violations over time?
Select an answer to reveal the explanation
Refer to the exhibit. A data engineer is deploying a production pipeline that references a table in the default schema. The job fails with the provided error. What is the root cause?
Select an answer to reveal the explanation
A Data Engineer needs to ensure that PII data in a Delta table is accessible only to members of the 'hr_admin' group, while allowing all other users to view the non-PII columns. Which Unity Catalog feature is the most efficient way to implement this requirement?
Select an answer to reveal the explanation
A Data Engineer needs to share a Delta table with a partner organization using Delta Sharing. The partner does not use Databricks. Which component must the Data Engineer generate to facilitate this secure connection?
Select an answer to reveal the explanation
You are optimizing a PySpark job that reads from a Delta table. You notice skewed data distribution on the 'customer_id' column, causing Task-level stragglers. Which transformation should you apply to the DataFrame to mitigate this skew during a join operation?
Select an answer to reveal the explanation
A Data Engineer needs to enforce a NOT NULL constraint on a specific column in a Delta table while maintaining the ability to perform high-performance streaming writes. Which approach is the most efficient and native method to ensure this data quality requirement?
Select an answer to reveal the explanation
Refer to the exhibit. An engineer observes that queries filtering on 'customer_id' are running slowly despite Z-Ordering. What is the most likely cause?
Select an answer to reveal the explanation
A data engineer is designing an ETL pipeline processing high-frequency streaming data into Delta tables on Databricks. The pipeline experiences frequent small file creation and high metadata overhead, degrading query performance. Which optimization technique should the engineer implement to resolve this issue?
Select an answer to reveal the explanation
Answer all 10 questions to see your domain score breakdown
Sitting the Databricks-DE-Pro under real exam conditions is a skill in itself. Candidates who underperform often do so not because of knowledge gaps, but because of poor time management or test anxiety. Use your final mock exam sessions to address both.
The Databricks-DE-Pro exam lasts 90 minutes. Do not spend more than 90 seconds on any single question on the first pass. Flag difficult ones and return to them after completing the rest.
On every question, immediately eliminate obviously wrong choices. Even if you are unsure between two options, narrowing to two doubles your odds. Most Databricks-DE-Pro distractors contain a subtle error — re-read the scenario constraint before committing to the answer that sounds most familiar.
Databricks writes many Databricks-DE-Pro questions as realistic scenarios. Read the final sentence first — it tells you what is being asked. Then re-read the scenario with the question in mind to avoid wasting time on irrelevant details.
The real Databricks-DE-Pro is a mental marathon lasting 90 minutes. In the week before your exam, complete at least two full timed mock sessions on separate days to build concentration stamina. If you cannot stay focused for 90 minutes in practice, you will struggle on exam day.
Questions
~267
On the real exam
Time limit
90 min
Official exam duration
Passing score
700/1000
Scaled scoring
The Databricks-DE-Pro uses scaled scoring — your raw percentage correct is converted to a score out of 1000. Consistently scoring above 80% on mock exams puts you well above the 700/1000 threshold, giving you a buffer for any unexpected question types on the real exam.
Yes. Courseiva provides free Databricks-DE-Pro mock exam questions across all official exam domains. The platform includes timed simulation, per-domain score breakdown, missed-question review, and readiness tracking. No account required — free forever, supported by advertising.
The practice test is optimised for learning: you see explanations after each question immediately. The mock exam is optimised for simulation: you answer all questions under time pressure and review at the end. Use practice tests for studying and mock exams for benchmarking.
Aim for consistent scores of 80% or above on full-length Databricks-DE-Pro mock exams before booking your test date. The official passing score of 700/1000 corresponds to roughly 72–75% correct answers, so an 80% buffer accounts for difficulty variation and question styles on the real exam.
Most candidates who pass Databricks-DE-Pro on their first attempt complete 3–5 full-length mock exams in the two weeks before their test. This is enough to identify final weak spots, build stamina, and verify readiness without over-stressing or running out of fresh questions.
No — all Courseiva questions are original, AI-assisted and checked against the public Databricks exam blueprints, with editorial oversight from an experienced network and security engineer. Exam dumps are memorised real exam questions shared illegally. Using dumps violates your Databricks certification agreement and can result in your certification being revoked. Our questions make you genuinely competent, not just test-day lucky.
Track your mock exam scores, see per-domain analytics, and benchmark readiness across every certification.
Sign Up FreeFree forever · Every certification included