Skip to content

CompTIA DA0-001

Data+

Verified practice questions with detailed answers, clear explanations, and community discussion.

  • 429

    questions

  • 7 days ago

    last updated

  • 4.8/5

    overall rating

Question 1 of 429

A data analyst needs to calculate the mean for Q1 sales using the data set below:

Exam DA0-001: Question 1 - Image 1

Which of the following is the mean?

Answer choices
Show answer

Correct answer: A

The mean for Q1 sales can be calculated by summing the sales figures for each product and then dividing by the number of products. The sales figures are: $2,667.60, $1,768.41, $3,182.40, $1,509.60, and $3,202.87. The sum of these values is $12,330.88. Dividing this sum by the number of products (5) gives a mean of $2,466.18. Therefore, the correct answer is $2,466.18.

Community votes

12 votes

ASuggested

100%

Question 2 of 429

A data analyst is creating a report that will provide information about various regions, products, and time periods. Which of the following formats would be the MOST efficient way to deliver this report?

Answer choices
Show answer

Correct answer: D

A dashboard with filters at the top that the user can toggle would be the most efficient way to deliver this report. This format allows users to dynamically interact with the data by filtering different regions, products, and time periods without the need to navigate through multiple tabs or pages. This interactivity and flexibility make dashboards highly efficient for accessing and comparing data in real-time, improving the user experience and effectiveness of the report.

Community votes

6 votes

DSuggested

100%

Question 3 of 429

A customer list from a financial services company is shown below:

Exam DA0-001: Question 3 - Image 1

A data analyst wants to create a likely-to-buy score on a scale from 0 to 100, based on an average of the three numerical variables: number of credit cards, age, and income. Which of the following should the analyst do to the variables to ensure they all have the same weight in the score calculation?

Answer choices
Show answer

Correct answer: D

To ensure that all three variables (number of credit cards, age, and income) have the same weight in the score calculation, the analyst should normalize the variables. Normalization scales the variables to a common range, typically between 0 and 1, by subtracting the minimum value and dividing by the range (maximum value minus minimum value). This makes it possible to directly compare and average the variables without one disproportionately influencing the score due to its scale or range. Recoding, calculating percentiles, or determining standard deviations do not inherently ensure equal weighting in the final score calculation.

Community votes

6 votes

DSuggested

100%

Question 4 of 429

Which of the following actions should be taken when transmitting data to mitigate the chance of a data leak occurring? (Choose two.)

Answer choices
Show answer

Correct answers: D, E

To mitigate the chance of a data leak occurring during transmission, two important actions are data encryption and data masking. Data encryption involves converting the data into a coded format that can only be accessed by authorized parties with the correct decryption key. This ensures that the data remains confidential and secure even if intercepted. Data masking involves replacing sensitive data with non-sensitive substitutes, making it unusable for unauthorized purposes while maintaining its utility for testing or development. Together, these methods protect the data both in transit and at rest, significantly reducing the risk of a data leak.

Community votes

8 votes

DESuggested

100%

Question 5 of 429

A data analyst has been asked to organize the table below in the following ways:

By sales from high to low -

By state in alphabetic order -

Exam DA0-001: Question 5 - Image 1

Which of the following functions will allow the data analyst to organize the table in this manner?

Answer choices
Show answer

Correct answer: D

To arrange the table by sales from high to low and then by state in alphabetical order, the correct function to use is sorting. Sorting allows for data to be organized based on the values in one or more columns. By applying a sort function, the table can first be sorted by the sales column in descending order and then by the state column in alphabetical order, achieving the desired organization.

Community votes

4 votes

DSuggested

100%

424 questions still locked

Your preview covered the first 5 questions. Unlock the rest to see every explanation and discussion thread, updated weekly

View plans

Choose your plan

Single payment · No subscription · No hidden fees

Standard

For a focused sprint before your exam date

$25USD

30 days of access, single payment

  • All 429 questions unlocked
  • Detailed answer explanations
  • Community discussions and votes
  • Weekly question updates
  • Printable PDF download
  • 100% refund if you do not pass

Premium

Extra runway, the PDF, and the refund guarantee

$35$60USD

90 days of access, single payment

Printable PDF download

Save every question as a PDF for offline study or printing.

  • All 429 questions unlocked
  • Detailed answer explanations
  • Community discussions and votes
  • Weekly question updates

Full refund if you do not pass

Send us your exam result and we refund the purchase.

Stories from the certified

May 11, 2026
As this was my first certification exam, I was understandably nervous about what to expect. These study materials made the preparation process much easier, and many of the questions closely reflected those on the actual exam.
Charles Sirois
Canada
May 5, 2026
Wasted about a month going through the free dump sites scattered all over reddit, half the answers were wrong and the other half were for a version of the exam that doesn't even exist anymore. Eventually gave in and paid the small fee here, and the difference was night and day.
Lance Chambers
United States
Apr 11, 2026
Honestly, I had already gone through the official documentation quite thoroughly, but still didn't feel fully confident going in. This helped things finally click for me. I realized I knew the material, but just hadn't connected all the pieces yet.
Alisha Kelly
Italy
Apr 9, 2026
Used this along with Microsoft Learn and the combo worked really well. The practice questions made the stuff I'd read actually stick. Passed first attempt, no complaints from me.
Casper Claassen
Netherlands
Jun 2, 2025
The content is accurate and clearly presented, and it's more affordable than competitors. The team has been incredibly responsive whenever I've had an issue, and they've been open to small changes that improve the platform.
Gabriele Ghesla
Italy
May 11, 2026
As this was my first certification exam, I was understandably nervous about what to expect. These study materials made the preparation process much easier, and many of the questions closely reflected those on the actual exam.
Charles Sirois
Canada
May 5, 2026
Wasted about a month going through the free dump sites scattered all over reddit, half the answers were wrong and the other half were for a version of the exam that doesn't even exist anymore. Eventually gave in and paid the small fee here, and the difference was night and day.
Lance Chambers
United States
Apr 11, 2026
Honestly, I had already gone through the official documentation quite thoroughly, but still didn't feel fully confident going in. This helped things finally click for me. I realized I knew the material, but just hadn't connected all the pieces yet.
Alisha Kelly
Italy
Apr 9, 2026
Used this along with Microsoft Learn and the combo worked really well. The practice questions made the stuff I'd read actually stick. Passed first attempt, no complaints from me.
Casper Claassen
Netherlands
Jun 2, 2025
The content is accurate and clearly presented, and it's more affordable than competitors. The team has been incredibly responsive whenever I've had an issue, and they've been open to small changes that improve the platform.
Gabriele Ghesla
Italy
Apr 13, 2026
I don't usually leave reviews, but this one felt worth sharing. The questions were quite close to what actually appeared on the exam, more than I expected. I spent about a week going through the material before my test, and it helped me feel more prepared.
Morgan Farmer
United Kingdom
May 4, 2026
Passed ITIL 4 Foundation with 87%. Material was enough by itself.
Remi Nuyts
United States
Apr 9, 2026
I had a smooth experience from start to finish. Access was available right away, no technical issues, which made it easy to get started. The content felt relevant and aligned well with what I was looking for.
Archie Hopkins
United States
Apr 11, 2026
Does what it says it does. Content felt solid, nothing confusing to navigate and I didn't run into any weird issues. I been putting off scheduling the exam for a while and going through this gave me enough confidence to finally book it and pass.
Nancy Mcbride
United States
May 8, 2026
A very quick response was received via email when a link issue occurred. The study materials provided were high quality and extremely helpful. I was able to complete the test successfully. Many thanks for the excellent support.
Neil Savage
United States
Apr 13, 2026
I don't usually leave reviews, but this one felt worth sharing. The questions were quite close to what actually appeared on the exam, more than I expected. I spent about a week going through the material before my test, and it helped me feel more prepared.
Morgan Farmer
United Kingdom
May 4, 2026
Passed ITIL 4 Foundation with 87%. Material was enough by itself.
Remi Nuyts
United States
Apr 9, 2026
I had a smooth experience from start to finish. Access was available right away, no technical issues, which made it easy to get started. The content felt relevant and aligned well with what I was looking for.
Archie Hopkins
United States
Apr 11, 2026
Does what it says it does. Content felt solid, nothing confusing to navigate and I didn't run into any weird issues. I been putting off scheduling the exam for a while and going through this gave me enough confidence to finally book it and pass.
Nancy Mcbride
United States
May 8, 2026
A very quick response was received via email when a link issue occurred. The study materials provided were high quality and extremely helpful. I was able to complete the test successfully. Many thanks for the excellent support.
Neil Savage
United States

Before you buy

Answers about access, updates, payments, and the refund policy.

01Are these real exam questions?

Our CompTIA DA0-001 questions are based on real exam experiences and are continuously updated to match the current exam format. Most candidates who study with us report passing on their first attempt, based on a self reported post exam survey.

02What happens if I don't pass the exam?

With our Premium package, you get a 100% money back guarantee. If you don't pass your exam after studying with our materials, simply contact us with your exam results and we'll refund your purchase. Terms and conditions apply, read our full refund policy to learn more.

03How often are the questions updated?

Our question bank is updated regularly based on feedback from recent exam takers. We typically review and update our content every week with reports about new questions or changes to the exam format.

04Can I extend my access period?

Yes. When your access is close to expiring, you can renew it for another 30 days directly from the exam page. If you need more time while you are still preparing, reach out and we will help.

05Is this a single payment or a subscription?

This is a single payment with no recurring charges. Once you purchase, you get full access to all exam questions for the duration of your package (30 days for Standard, 90 days for Premium). No hidden fees or automatic renewals.

06How many questions are included?

You get access to all 429 questions in our database for the CompTIA DA0-001 exam. This includes detailed explanations and answer justifications to help you understand the concepts thoroughly.

07Do you offer technical support?

Yes. Email us at hello@examice.com for help with access, billing, or the platform. We read every message and typically reply within 24 hours on business days.

08Is my payment secure?

Absolutely! We use industry standard SSL encryption and process all payments through Stripe, a trusted payment processor used by millions of businesses worldwide. Your payment and personal information are completely secure.

Ready to unlock the rest

All 429 questions from $25, single payment, instant access.

Back to plans