Free DA0-002 practice test — 986+ 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 Every set is scored and drawn from the live question bank — so you practise exactly what the exam tests, not outdated dumps.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 986+ 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 Concepts and Environments
Data Analysis
Visualization and Reporting
Data Acquisition and Preparation
Data Governance
64 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 986+ 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 retail company stores customer purchase history in a relational database. The database contains a table 'transactions' with columns: transaction_id, customer_id, product_id, quantity, price, and transaction_date. A data analyst needs to create a report that shows total revenue per customer for the last quarter. Which data concept describes the relationship between customer_id and total revenue?
Select an answer to reveal the explanation
A healthcare database stores patient records. Each patient has a unique patient_id, and the database includes a table 'visits' with visit_id, patient_id, visit_date, and diagnosis_code. To ensure data integrity, which constraint should be applied to the patient_id column in the 'visits' table?
Select an answer to reveal the explanation
A data engineer is designing a data warehouse for a multinational corporation. The company has sales data from different regions with varying currencies and date formats. To ensure consistency, which data concept should be applied to standardize the data before loading into the warehouse?
Select an answer to reveal the explanation
An e-commerce company uses a star schema for its data warehouse. The fact table 'sales_fact' contains foreign keys to dimension tables: customer_dim, product_dim, time_dim, and store_dim. A business user wants to know the total sales for each product category in the last month. Which join operation is required to retrieve this data?
Select an answer to reveal the explanation
A data analyst needs to identify the most frequently occurring value in a dataset. Which measure of central tendency should they use?
Select an answer to reveal the explanation
A retail company wants to predict future sales based on historical data. Which modeling approach is most appropriate if the data shows a clear seasonal pattern?
Select an answer to reveal the explanation
A data analyst is building a model to predict customer churn. The dataset has 10,000 records with 500 churned customers. The model predicts churn with 95% accuracy, but only identifies 10% of actual churners. Which metric best highlights this issue?
Select an answer to reveal the explanation
A data analyst needs to combine two datasets that have the same columns but different rows. Which operation should they use?
Select an answer to reveal the explanation
A data analyst is creating a dashboard to monitor server CPU utilization over the past 24 hours. Which chart type is most appropriate for showing the trend of CPU usage over time?
Select an answer to reveal the explanation
A sales dashboard shows monthly revenue but the bars are very tall for some months and very short for others, making comparisons difficult. Which visualization modification would best improve readability?
Select an answer to reveal the explanation
A data analyst creates a bubble chart showing country GDP (x-axis), life expectancy (y-axis), and population (bubble size). However, large bubbles overlap and obscure many data points. Which corrective action should the analyst take?
Select an answer to reveal the explanation
An analyst wants to show the distribution of test scores for 500 students. Which visualization type is best for understanding the shape of the distribution?
Select an answer to reveal the explanation
A data analyst is pulling data from a production database for a report. The database contains customer orders with a column 'order_date'. The analyst notices that some orders have dates in the future. Which data quality issue does this represent?
Select an answer to reveal the explanation
A data engineer is designing a data pipeline to ingest streaming data from IoT sensors. The sensors send data every second, and the pipeline must handle bursts of up to 10,000 messages per second. Which approach is most appropriate for capturing this data before processing?
Select an answer to reveal the explanation
A data analyst needs to combine two datasets: one contains customer information (customer_id, name, address) and the other contains order information (order_id, customer_id, order_date). The analyst wants to include all customers, even those who have not placed orders. Which type of join should be used?
Select an answer to reveal the explanation
A data analyst is tasked with extracting data from a legacy system that outputs fixed-width text files. The analyst needs to parse these files into a structured format. Which tool or method is most appropriate for this task?
Select an answer to reveal the explanation
A data analyst notices that a line chart showing monthly sales over the past two years has a steep drop in one month. Upon investigation, the analyst discovers that a new sales region was added mid-month and the data was not normalized. Which of the following best practices should the analyst apply to communicate this insight accurately?
Select an answer to reveal the explanation
A data team is preparing a dashboard for executives. The team wants to highlight key performance indicators (KPIs) that are below target. Which of the following visualization techniques would most effectively draw attention to underperforming metrics without causing confusion?
Select an answer to reveal the explanation
Answer all 18 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 Concepts and Environments (20%), Data Analysis (24%), Visualization and Reporting (20%), Data Acquisition and Preparation (22%), 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 100% original — written by certified engineers to test the same knowledge areas using new scenarios and wording. You learn the material, not just the answers.
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