Free DA0-002 practice test — 1,004+ DA0-002 practice questions with detailed explanations across all 5 official DA0-002 exam domains. Every set is scored and drawn from the live question bank — so you practise exactly what the exam tests, not outdated dumps.
Courseiva includes 1,004+ CompTIA Data+ (DA0-002) practice questions across the official exam domains.
Feature
Courseiva
This free DA0-002 practice test mirrors the structure and difficulty of the real CompTIA Data+ (DA0-002) exam. Every question is written against the official 2026 exam blueprint published by CompTIA, ensuring you practise exactly what the exam tests — not last year's objectives.
The DA0-002 blueprint is divided into 5weighted domains. Questions on this page are distributed proportionally across each domain, so the mix you see here reflects the same weighting you'll face on exam day. High-weight domains like Data Analysis and Data Acquisition and Preparation contribute the most questions, meaning focused practice on these areas gives you the highest return on study time.
DA0-002 Exam Blueprint — 5 Domains
Data Acquisition and Preparation
Data Concepts and Environments
Data Analysis
Visualization and Reporting
Data Governance
65 numbered sets, 5 domain question banks, and targeted sessions — every page is a unique set of questions.
Choose all correct answers
Each chapter page covers one topic in depth — theory, key concepts, and focused practice questions. Use these to close knowledge gaps before returning to full practice tests.
Getting the most from practice questions requires more than just clicking through answers. Here is the study method used by candidates who pass DA0-002 on their first attempt:
Answer before revealing
Read each DA0-002 question fully, eliminate obviously wrong choices, then commit to an answer before clicking to reveal. This active recall process is what builds lasting knowledge.
Read every explanation
Even when you answer correctly, read the full explanation. Knowing WHY the right answer is correct — and why the distractors are wrong — is what separates a 750 score from a 900 score.
Track weak domains
Note which DA0-002 domains you get wrong most often. Then do a targeted 20-30 question session focused only on that domain until your accuracy improves.
Simulate exam pacing
The real DA0-002 gives you roughly 1 minutes per question. Use the 60 or 120-question sessions to practise hitting that pace comfortably.
Most candidates who pass DA0-002 on their first attempt report doing between 400 and 800 practice questions over 4–8 weeks of preparation. With 1,004+ questions in the Courseiva bank, you have more than enough material to build that repetition without seeing the same question twice.
Answer each question to reveal the full explanation and correct answer. This starter set is drawn from all 5 exam domains in blueprint proportion. Use the session selector to start a longer focused practice run.
A data analyst needs to count the number of customers who have placed at least one order. Which SQL query should be used?
Select an answer to reveal the explanation
A small business wants to acquire customer feedback through a short questionnaire emailed after purchase. Which data acquisition method does this represent?
Select an answer to reveal the explanation
In SQL, you want to retrieve all products whose names start with 'Pro'. Which WHERE clause should you use?
Select an answer to reveal the explanation
A data analyst is profiling a dataset and finds that the 'email' column contains some NULL values. Which SQL query can be used to count how many rows have a NULL email?
Select an answer to reveal the explanation
During an ETL process, a data quality check fails due to duplicate customer IDs. Which data quality dimension is violated?
Select an answer to reveal the explanation
A large online retailer stores customer orders in a PostgreSQL database. Each order has a unique order ID, and the database is normalized to 3NF. Which type of data is this?
Select an answer to reveal the explanation
A data analyst needs to share a weekly sales report with the marketing team. The report includes aggregated data from the data warehouse. To simplify access, the analyst creates a virtual table that encapsulates the complex query. Which database object should the analyst create?
Select an answer to reveal the explanation
A company is designing a database for an e-commerce application that requires high transaction throughput and must guarantee that each transaction is processed atomically. Which property of ACID ensures that a transaction is either fully completed or not executed at all?
Select an answer to reveal the explanation
A marketing team uses K-means clustering to segment customers based on purchase history. To determine the optimal number of clusters, they plot the within-cluster sum of squares (WCSS) against k and look for an elbow. What is the purpose of this method?
Select an answer to reveal the explanation
A healthcare analytics team is analyzing patient readmission rates. They have a dataset with thousands of records including patient age, diagnosis, length of stay, number of prior admissions, and discharge date. The goal is to identify key factors influencing readmission and create a model to predict high-risk patients. The data is imbalanced: only 5% of patients are readmitted within 30 days. The team plans to use logistic regression. What is the most appropriate approach?
Select an answer to reveal the explanation
A marketing analyst wants to segment customers based on their purchase history, including total spent, number of transactions, and average order value. The analyst runs k-means clustering with k=5 on the raw data but notices that the cluster assignments change significantly every time the algorithm is executed. What should the analyst do first to obtain consistent and meaningful clusters?
Select an answer to reveal the explanation
In time series decomposition, a pattern that repeats at regular intervals (e.g., weekly, yearly) is called:
Select an answer to reveal the explanation
A dashboard designer is creating a sales performance dashboard and wants to minimize non-data ink to improve clarity. Which action best follows the principle of maximizing the data-ink ratio?
Select an answer to reveal the explanation
An analyst creates a dashboard with a large amount of decorative graphics and background images. According to CompTIA Data+, which design principle is being violated?
Select an answer to reveal the explanation
A business analyst wants to show the relationship between advertising spend (independent variable) and sales revenue (dependent variable) for 12 different regions. Each region will be represented by a point. Which chart type is most appropriate?
Select an answer to reveal the explanation
A dashboard designer wants to ensure the most important KPI is prominently displayed at the top left. Which design principle is being applied?
Select an answer to reveal the explanation
A data analyst creates a report showing sales by product category. The analyst notices that one category has a very high sales figure due to a one-time bulk order. Which of the following is the best way to communicate this insight to stakeholders?
Select an answer to reveal the explanation
A retail company has a dashboard that tracks daily sales across all stores. The dashboard is used by the CEO during monthly board meetings. Recently, the CEO complained that the dashboard is confusing and takes too long to interpret. The data analyst is asked to redesign the dashboard to improve usability. The analyst has access to all sales data. The CEO prefers a high-level overview with the ability to drill down into regions if needed. The analyst must decide on a course of action. What should the analyst do first?
Select an answer to reveal the explanation
A healthcare data analyst is presenting findings on patient readmission rates to a group of hospital administrators. The analysis reveals a 15% increase in readmissions over the past quarter for patients aged 65+ from a specific zip code. However, the administrators are skeptical because previous quarterly reports showed no such trend, and they suspect data quality issues. The analyst must communicate this insight effectively while maintaining credibility. Which of the following approaches should the analyst take?
Select an answer to reveal the explanation
A data analyst is creating a dashboard in Looker Studio and needs to combine data from two different data sources using a common field. Which feature should be used?
Select an answer to reveal the explanation
Answer all 20 questions to see your domain score breakdown
A structured study plan dramatically increases your chances of passing DA0-002 on the first attempt. The most effective approach combines reading the official CompTIA documentation or a study guide, watching video explanations for difficult concepts, and then reinforcing everything with daily practice questions.
We recommend the following weekly structure for DA0-002 preparation:
Cover each DA0-002 domain systematically. Read the exam objectives, watch explanatory content, and do 10–20 practice questions per domain to test understanding as you go.
Run full 50–60 question mixed sessions daily. Review every wrong answer in detail. Identify which domains are consistently scoring below 70% and revisit those study materials.
Do 100–120 question timed sessions to simulate real exam conditions. Aim for consistent scores above 80% before booking your exam date. A score above 80% in practice typically translates to a passing DA0-002 score.
On exam day, the DA0-002 tests your ability to apply knowledge to realistic scenarios — not just recall definitions. This is why reading explanations and understanding the reasoning behind every answer matters more than simply grinding question volume. Use the high-count sessions (100, 120) in the final weeks as your confidence benchmark.
Questions
90
On the real exam
Time limit
90 min
1 min per question
Passing score
675/1000
Scaled scoring
The DA0-002 exam uses a scaled scoring system — your raw score of correct answers is converted to a score out of 1000. A passing score of 675/1000 does not mean you need 68% of questions correct; the conversion accounts for question difficulty. Consistently scoring above 75–80% on practice tests puts you in a strong position to achieve 675/1000 on the real exam.
DA0-002 includes performance-based questions (PBQs) alongside standard multiple-choice. PBQs ask you to complete simulated tasks in a lab environment. The domain knowledge you build here applies equally to both question types.
Multiple-choice and performance-based questions covering IT security, networking, and operations.
Yes. Courseiva provides free CompTIA Data+ (DA0-002) practice questions with explanations across the official exam domains. Start with a quick practice test, then continue with topic-based practice, mock exams, missed-question review, bookmarked questions, weak-topic recommendations, and readiness tracking. No account required. Create a free account to unlock per-domain analytics and progress tracking across every certification on the platform. Courseiva is free forever, supported by advertising.
Every question is written against the official DA0-002 exam blueprint published by CompTIA. Our questions follow the same wording style, scenario complexity, and answer structure as the actual exam. They are original questions — not brain dumps — so you learn the underlying concepts and reasoning, not just memorised answers. Candidates who study with brain dumps often pass but have no transferable knowledge; Courseiva questions make you genuinely competent.
Most candidates who pass DA0-002 on their first attempt do 30–60 questions per day. Use the Quick 10 session for daily warm-ups when you are short on time. On study days, run a 50 or 60-question session to build stamina. Reserve 100 and 120-question sessions for the final two weeks when you want to simulate real exam conditions and benchmark your readiness.
The DA0-002 covers 5 domains: Data Acquisition and Preparation (22%), Data Concepts and Environments (20%), Data Analysis (24%), Visualization and Reporting (20%), Data Governance (14%). Each domain carries a different weight, so allocate your study time accordingly. The highest-weighted domains — Data Analysis and Data Acquisition and Preparation — should receive the most attention.
Exam dumps are memorised question-and-answer lists taken from actual exam papers, often obtained illegally and shared without CompTIA's authorisation. Using them violates your NDA and CompTIA's certification agreement, and can result in certification revocation. Courseiva questions are original — AI-assisted, checked against the official exam objectives, and published under the editorial oversight of an engineer with 12+ years' experience. They test the same knowledge areas using new scenarios and wording. You learn the material, not just the answers.
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