Data+ (DA0-001) is a specialty-level CompTIA certification exam. The blueprint splits the exam across 5 domains, starting with Data Concepts and Environments, Data Mining, Data Analysis. On exam day you face around 90 questions in 90 minutes, in formats such as multiple-choice and performance-based. The 20 questions below are free samples written to match that style: answer each one first, then reveal the correct answer and note which topics you miss. The DA0-001 is rated beginner in difficulty, and most candidates prepare with at least 6 months of hands-on experience. Because every answer is revealed in place, you can work through the whole set without leaving this page. Work through all 20 samples before deciding whether to buy the full 301+ question PDF.
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During data cleansing, an analyst conducts measures of central tendency on a data set. Which of the following data is the analyst attempting to identify?
An analyst is summarizing the results from a recently completed survey. The results have been validated, but the analyst notices a few rows of data are missing at the bottom. For which of the following data qualities does this present the GREATEST issue?
An analyst is conducting a survey to measure height. Which of the following is the most likely to decrease as the analyst collects more survey responses?
A database consists of one fact table that is composed of multiple dimensions. Each dimension is represented by a denormalized table. This structure is an example of a:
A data analyst added some missing data to a list of observations, since only a small amount of the data was absent. Which of the following actions did the data analyst perform?
Which of the following data formats are examples of unstructured data? (Choose two.)
Which of the following centralized documents best describes table schema and mapping used in future analyses?
Which of the following data analytics tools would be BEST to retrieve data from a relational database management system?
An organization would like to add a secondary email field to its customer database in order to enrich the customer profiles. Which of the following data manipulation techniques should the analyst use to add this information?
During an interview, a hiring manager asks an analyst about the analyst's experience using programming languages. The analyst has used HTML, Python, and SQL. Which of the following explains what the analyst has most likely used HTML to accomplish?
Which of the following best describes an exploratory analysis?
Which of the following types of analysis is used when comparing last week's sales to the previous week's sales?
Which of the following statistical measures is the most suitable and simple measure of the strength and direction of the linear relationship between price and volume?
A data analyst is working with a team to create a dashboard for a client who requires on-demand access. Which of the following is the best delivery method to support the client's requirement?
A business analyst has performed the following steps: • Reviewed research questions and business needs. • Identified data needs and how to collect this information. • Scoped the type of issues of interest based on the data. • Outlined the time frame needed. Which of the following describes what the analyst is trying to develop with this process?
Which of the following BEST describes an ad hoc report?
A database administrator is required to mask certain table columns containing PII in order to comply with the company privacy policy. Which of the following are the most likely types of information the administrator should mask? (Choose two.)
Which of the following types of data manipulation functions should a data analyst use to implement a YES/NO condition in a spreadsheet?
An analyst is training a new coworker on the importance of data governance and is focusing on security requirements. Which of the following should the analyst include in the training? (Choose two.)
Which of the following is an example of a structured data type?
No. They are original practice questions written to match the format and topic mix of the Data+ exam, which contains around 90 questions. Treat them as representative practice, not leaked exam content.
This page includes 20 questions, each with its correct answer you can reveal in place. The full study PDF expands that to 301+ questions.
Yes. Open the answer panel under each question to see which option is correct. Answer first, then reveal, so the set works as a self-check rather than a reading exercise.
Not on its own. Use the samples to find weak topics, revise them against the official domains, then work through the full 301+ question set under timed conditions before booking the exam.
Download the complete DA0-001 study bundle with 301+ questions in a single printable PDF.
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