Free Databricks Practice Questions (Bilingual, 2026)

Looking for a free practice question bank to prepare for the Databricks certification exams in Japanese? NicheeLab offers a learning platform with 6,800+ questions covering all 7 certifications, with one-click Japanese/English switching. This article walks through what's included, how much of it is free, and how to use it most effectively.

Covered Certifications and Question Counts

The NicheeLab question bank covers all 7 Databricks certifications. Questions are organized by exam domain so you can pinpoint your weak areas and drill into them efficiently.

Certification	Questions	Domains
Data Engineer Associate (DEA)	1,200	5 domains
Data Engineer Professional (DEP)	950	5 domains
Data Analyst Associate (DAA)	800	4 domains
Machine Learning Associate (MLA)	1,100	4 domains
Machine Learning Professional (MLP)	750	5 domains
Spark Developer Associate	1,000	5 domains
GenAI Engineer Associate	1,000	5 domains

What's Free

On NicheeLab you can browse and answer questions without registering. The free plan includes the following:

Practice Set 1: 5-10 questions from each domain. Pass/fail status and a detailed explanation appear immediately after you answer, so you can spot knowledge gaps right away.
Mock Exam Set 1: takeable with the same question count and time limit as the real exam. After finishing, you get a score report and per-domain accuracy breakdown.
Study history: once you create an account, you can review your answer history, accuracy trends over time, and a visualization of your weakest domains.

Question Formats

The NicheeLab question bank faithfully reproduces the question formats used on real Databricks exams.

Single Choice

This format makes up about 70% of the exam. You pick one correct answer from four options. Stems are scenario-based and grounded in real-world situations, testing your ability to choose the "most appropriate" option rather than memorize facts.

Multiple Response

This format specifies the number of correct answers ("Choose 2", "Choose 3") and accounts for about 20% of the exam. There's no partial credit — you only get the point if every selected option is correct. NicheeLab places extra emphasis on the patterns where this format is easiest to get wrong.

Code Reading Questions

You're shown a PySpark, Spark SQL, or Delta Lake code snippet and asked to choose the correct output, the cause of an error, or the right fix. About 30-35% of the Spark Developer exam and around 10% of the DEA exam use this format.

How It Compares to the Official Practice Exam

Databricks publishes one free Practice Exam per certification. The table below summarizes the differences between the official Practice Exam and the NicheeLab question bank.

Item	Official Practice Exam	NicheeLab Question Bank
Question count	1 set per exam (~45 questions)	6,800+ across all 7 certifications
Japanese support	Partial	Every question switchable JA/EN
Explanation depth	Correct answer only	Reasoning for every option, right and wrong
Per-domain analytics	None	Per-domain accuracy reports
Retaking	Same questions every time	Different questions per set
Domain weights	Aligned with official Exam Guide	Aligned with official Exam Guide

The official Practice Exam is ideal for getting familiar with the question format and gauging your current level. The NicheeLab question bank is better suited for iteratively closing weak spots and accumulating exam-grade practice volume. Using both is the most effective study strategy.

How to Use It Effectively

Here's a three-step study strategy built around the NicheeLab question bank.

Step 1: Identify your weak domains

Start by taking Mock Exam Set 1 under the timed limit and reviewing your per-domain accuracy. Any domain below 60% is a weak spot. For example, if your "ELT pipelines" accuracy is low on the DEA exam, you'll need to shore up your knowledge of Auto Loader and Delta Live Tables (Lakeflow Declarative Pipelines).

Step 2: Drill your weak domains

Use Practice Mode to repeatedly drill questions from your weak domains. Read every explanation to understand why each option is right or wrong, and follow up by reading the related official documentation pages. Keep going until your accuracy on those domains exceeds 80%.

Step 3: Finish with a full mock exam

Once you've closed your weak spots, take a different mock exam set to confirm overall readiness. Run it end-to-end under the real time limit. When you can consistently hit 70%+ across every domain, you're in pass territory. Doing this as a final check 2-3 days before the real exam also doubles as time-management practice.

Try a Sample Question

DEA - Delta Lake

問題 1

When running MERGE INTO on a Delta Lake table, which WHEN NOT MATCHED clause syntax is correct for performing an INSERT operation on rows that don't match between the target table and the source data?

WHEN NOT MATCHED THEN INSERT (col1, col2) VALUES (source.col1, source.col2)
WHEN NOT MATCHED THEN INSERT INTO VALUES (source.col1, source.col2)
WHEN NOT MATCHED THEN ADD ROW (source.col1, source.col2)
WHEN NOT MATCHED THEN UPSERT (col1, col2) VALUES (source.col1, source.col2)

正解: A

The WHEN NOT MATCHED clause of a MERGE INTO statement defines what happens when no matching row exists in the target table. The correct syntax is "WHEN NOT MATCHED THEN INSERT (column list) VALUES (value list)". INSERT INTO (B) is the syntax for a standalone INSERT statement and isn't valid inside MERGE. ADD ROW (C) doesn't exist in Delta Lake. UPSERT (D) is a term that describes the overall MERGE operation, not a keyword used inside a WHEN clause. MERGE INTO is a frequently tested topic in the ELT domain of the DEA exam.

Frequently Asked Questions

Is the NicheeLab question bank the same as the official Practice Exam?

No. The NicheeLab question bank is independently authored and distinct from the official Databricks Practice Exam. We faithfully reproduce the exam domains and weights from the official Exam Guide, but every question stem and option is original. The official Practice Exam offers only one set (about 45 questions) per certification, while NicheeLab provides 500-1,200 questions per certification so you can practice across a much wider range of patterns.

What's included in the free plan?

The free plan includes Practice Set 1 and Mock Exam Set 1 for each certification. Practice Set 1 includes 5-10 questions from each domain with detailed explanations shown immediately after you answer. Mock Exam Set 1 mirrors the real exam's question count and time limit, then delivers a score report with per-domain accuracy at the end. You can browse questions without registering, but saving study history requires an account.

How do I switch between Japanese and English?

Use the language toggle in the top right of the question screen to switch between Japanese and English instantly. The switch applies to the entire screen rather than a single question, so stems, options, and explanations all switch to the chosen language. Databricks exams can be taken in Japanese, but code segments stay in English on the real exam, so practicing code questions in English mode is important. Your language preference is saved in your browser and persists between visits.

Try the question bank for free

Practice like the real exam with 6,800+ questions across all 7 certifications

Try free questions →

Check what you learned with practice questions

Practice with certification-focused question sets

無料で問題を解いてみる

Author

NicheeLab Editorial Team

NicheeLab editorial team focused on data engineering and cloud certification learning. Content is structured around practical study needs and official exam domains.

Free Databricks Question Bank: 6,800+ Practice Questions