CompTIA Data+ DA0-002 Exam Practice Questions, practice question pack
COMPTIA · DA0-002

CompTIA Data+ DA0-002 Exam Practice Questions

148 questionsInstant PDF downloadUpdated September 2026

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Three of the 148 questions in this pack

Question 1

Which of the following makes data unreadable without a required key?

  1. Anonymization
  2. Role-based access control
  3. Encryption
  4. Masking
Show answer and explanation

Correct answer: C. Encryption

Encryption is the process of converting readable data into an unreadable format using a cryptographic key, making it inaccessible without the correct decryption key. Anonymization removes identifying information but doesn't make data unreadable. Role- based access control restricts who can access data but doesn't render it unreadable. Masking obscures data for display purposes but doesn't fundamentally make it unreadable to those with access.

Why the other options are wrong

  • A. Anonymization removes identifiers but leaves data in a readable format.
  • B. RBAC controls access permissions but doesn't make data unreadable.
  • D. Masking hides data visually but doesn't prevent reading by authorized users.

Question 2

An analyst is building a reporting deck. The deck must include tracking and visualizing metrics and row-level security. Which of the following actions should the analyst take after meeting the initial requirements?

  1. Show a mock-up to the team.
  2. Explain the desired level of reporting detail.
  3. Present an analysis of the data.
  4. Find out the project due date.
Show answer and explanation

Correct answer: A. Show a mock-up to the team.

After identifying initial requirements like tracking metrics and row-level security, the next logical step is to validate assumptions and gather feedback by showing a mock-up to the team. This allows stakeholders to visualize the solution, provide feedback, and ensure the analyst's understanding of requirements is correct before investing significant effort in full development.

Why the other options are wrong

  • B. Explaining reporting detail should happen during initial requirements gathering, not after.
  • C. Presenting analysis is a later deliverable, not a follow-up to initial requirements.
  • D. Finding the due date should be established before or during initial requirements, not after.

Question 3

A data analysis team needs to segment customers based on customer spending behavior. Given one million rows of data like the information in the following sales order table: Which of the following techniques should the team use for this task?

Exhibit for question 3

  1. Standardization
  2. Concatenate
  3. Binning
  4. Appending ✅Correct Answer: C, Binning Binning is the correct technique for segmenting customers based on spending behavior. Binning divides continuous numerical data (such as the Amount_spent column ranging from 200,000 to 600,000) into discrete intervals or bins (for example: low spenders, medium spenders, high spenders). This creates categorical segments that enable meaningful customer classification and behavioral analysis. The sales order table shows a continuous range of spending amounts that naturally lend themselves to binning for segmentation purposes.
Show answer and explanation

The answer and explanation for this question are in the free sample PDF.

See all 10 free questions Get the full pack, US$39

148 practice questions for CompTIA Data+ (DA0-002), with full explanations.

Every question comes with the correct answer, the reasoning behind it, and a note on why each wrong option is wrong. Work through it once with the answers, then again with the questions-only copy under exam conditions.

  • 148 questions mapped to the DA0-002 exam objectives
  • Answers and explanations for every question, including the wrong options
  • A questions-only PDF for timed practice runs
  • Instant delivery by email the moment you check out
  • Free monthly updates for as long as the exam is live
  • Pass or your money back

A failed DA0-002 attempt costs another US$264 voucher, plus weeks of restudying. This pack is US$39, paid once, and refunded if you fail.

Try 10 questions free before you buy.

Last updated September 2026 · 148 questions

What makes the Data+ hard

CompTIA’s data analytics certification was updated and relaunched as V2 on 14 October 2025. It is vendor-neutral: it does not care whether you use Power BI, Tableau, SQL or Python. It tests the full data lifecycle, where data comes from, how to clean and prepare it, how to analyse it statistically, how to visualise it clearly, and how to govern it properly, and that breadth is what catches candidates off guard.

Up to 90 questions in 90 minutes, 675 out of 900 to pass. The mix of multiple-choice and performance-based questions means you need to apply concepts, not just recall them, and because the exam is newly released as V2, question exposure matters more than usual. This pack has 148 practice questions for the DA0-002: data quality scenarios, ETL decisions, statistical method selection and governance concepts, so none of it is new on exam day.

About the exam

CompTIA Data+ (DA0-002) is CompTIA’s vendor-neutral certification for data analytics professionals. V2 launched 14 October 2025, replacing DA0-001. It validates the ability to mine, analyse, interpret and report on data to support business decision-making. No formal prerequisites are required, though familiarity with SQL and basic statistics is recommended. Valid for three years, renewable via continuing education or retake.

Exam domains

  • Data concepts and environments: 20%
  • Data acquisition and preparation: 22%
  • Data analysis: 24%
  • Visualization and reporting: 20%
  • Data governance: 14%

Up to 90 questions, 90 minutes, pass mark 675 out of 900, US$264 per voucher, mix of multiple-choice and performance-based questions, valid for three years.

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Questions before you buy

What do I get when I buy the CompTIA Data+ DA0-002 pack?

148 practice questions as a PDF, each with the correct answer, a full explanation and a note on why the other options are wrong, plus a separate questions-only PDF for timed practice.

How quickly do I receive it?

Straight away. The full PDF and a questions-only copy are emailed to you the moment your payment goes through, and the same links are on your order page.

Is there a free sample?

Yes. Ten questions from this pack, with answers and explanations, are free on this page and as a PDF, so you can judge the quality before you pay.

Are updates included?

Yes. The pack is updated every month for as long as the exam is live, and updates are free for everyone who has bought it.

What if I fail the exam?

We refund the pack. Sit the exam 7 to 30 days after buying, then send your official score report within 7 days of the exam date, as set out in the refund policy.

Can I share it with colleagues?

Each purchase is licensed to one person. For a team, school or training organisation, email support@certstash.com for a licence that fits.

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