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5 free, original PBQs for Data+ (DA0-002), with drag-and-drop. Do each task, check it, and read why the answer is right.
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CompTIA Data+
You do each task instead of picking an answer. Every question is explained after you check it, and you get a score at the end.
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The questions
Each one with its scenario and task. Try it above first, then open the explanation.
Question 1 · Sorting · Data Concepts and Environments
A retailer wants to bring six sources of data into one analytics platform. How each one is stored and processed depends on how much structure it has.
Put each source under its kind of data.
Structured data fits fixed rows and columns, so it can go straight into a relational table. Semi-structured data carries its own labels (keys in JSON, tags in XML) but records don’t all have to share the same fields. Unstructured data, such as audio and free text, has no predefined fields and needs processing before it can be analyzed.
Question 2 · Ordering · Data Acquisition and Preparation
An analyst has been asked why online returns rose last quarter. The data is spread across the order system and the warehouse system, and none of it is ready to analyze.
Arrange the six steps from first to last.
The question decides which data is needed, so it comes first. After extraction, the data is profiled to find its problems (missing values, duplicates, outliers) before anything is changed. Cleaning and transforming then fixes them in a way that can be repeated. The data is loaded where it will be analyzed, and row counts and totals are checked against the sources so that nothing was lost or doubled on the way.
Question 3 · Matching · Data Analysis
A shop recorded its orders on each of six trading days last week: 1, 2, 2, 6, 9 and 10. The manager wants the usual summary figures.
Match each statistic to its value for this data.
The mean is the total, 30, divided by the six values: 5. With an even number of values the median is the average of the two in the middle, 2 and 6, which is 4. The mode is the most frequent value, 2. The range is the largest minus the smallest: 10 − 1 = 9. The mean sits above the median here because the two busy days pull it up.
Question 4 · Matching · Visualization and Reporting
A quarterly report has six findings to show, and each needs the type of chart that makes its message obvious.
Match each finding to the best chart.
A line chart shows change over time. A bar chart compares separate categories. A pie chart shows parts of one whole, and works only with a few slices. A scatter plot shows how two numeric measures relate. A histogram shows how values of one measure are distributed, and a map shows values by place. A word cloud and a waterfall chart have their uses, but not for these findings.
Question 5 · Matching · Data Governance
A new data governance policy assigns roles and rules, and staff keep asking who does what.
Match each description to the term.
The data owner is accountable for a data set and decides who may use it. The data steward looks after its quality and meaning day to day. The data custodian runs the systems that store and protect it, following the owner’s decisions. Data masking hides part of a value so that people can work with records without seeing all of it. A retention policy sets how long data is kept before it must be deleted.
CompTIA lists Data+ among its certifications with simulation performance-based questions: tasks in an approximation of a real tool, such as a firewall, a network diagram or a terminal window. CompTIA’s page on performance-based questions, read on November 12, 2026.
Guide
CompTIA describes performance-based questions as exam items that test your ability to solve problems in real-world settings. Most are simulations: an approximation of a tool such as a firewall, a network diagram, a terminal window or an operating system.
You don’t pick an answer. You do the task, and there can be more than one correct way to do it.
Try each question cold. Getting it wrong first and then reading why teaches more than reading the answer and nodding along.
A right answer reached by guessing is a wrong answer waiting for exam day. Every question here explains why each part is what it is.
CompTIA says a simulation question can be skipped and returned to later, with your work saved. If one is eating your time, move on, answer the multiple-choice questions and come back.
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Yes. CompTIA lists Data+ among its certifications with simulation performance-based questions: tasks in an approximation of a real tool, such as a firewall, a network diagram or a terminal window. That is from CompTIA’s page on performance-based questions, read on November 12, 2026.
No. They’re original tasks written to each exam’s published objectives. Using leaked real exam questions breaks every vendor’s exam rules.
CompTIA says a performance-based question can have more than one correct way through it, that its scoring allows for the different approaches, and that partial credit may be given. Here, each question is scored by its parts, so you can see which part you missed.
CompTIA says a simulation question can be skipped and returned to later, and that your work on it is saved when you move on. A virtual-environment question has to be completed when you reach it: a warning screen tells you so first.
No. The questions run in your browser and nothing is saved. Sign up only if you want full practice exams and progress tracking.
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