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DA0-002: CompTIA Data+ — Free Practice Questions

10 free sample questions from a bank of 298, with the correct answers and explanations. No signup required — start practising right now.

1Which of the following makes data unreadable without a required key?
  • Anonymization
  • Role-based access control
  • Encryption
  • Masking
Answer: C
2An 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?
  • Show a mock-up to the team.
  • Explain the desired level of reporting detail.
  • Present an analysis of the data.
  • Find out the project due date.
Answer: A
3A 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?
DA0-002: CompTIA Data+ question 3
  • Standardization
  • Concatenate
  • Binning
  • Appending
Answer: C
4Which of the following pieces of information, if made public, results in a data privacy violation?
  • Gender
  • Driver’s license
  • Age
  • Employment status
Answer: B
5A data analyst is analyzing the following data set: Which of the following methods should the analyst use to determine the total cost for each transaction?
DA0-002: CompTIA Data+ question 5
  • Parsing
  • Scaling
  • Compressing
  • Deriving
Answer: D
6A data analyst needs to use one table's data to refine data selection from a second table. Which of the following is the most efficient way?
  • Subquery
  • Aggregate
  • Union
  • Join
Answer: A
7Which of the following is found in metadata?
  • Transformations
  • Data lineage
  • Syntax
  • Variable types
Answer: B
8Which of the following allows the transfer of isolated applications to multiple environments?
  • Virtualization
  • Version control
  • Continuous integration
  • Containerization
Answer: D
9A data breach occurs at a company. Which of the following actions should be taken?
  • Make an announcement on social media so customers are aware as soon as possible.
  • Tell the company management team and then tell regulatory agencies.
  • Keep the incident a secret until the issue is resolved.
  • Inform the entire IT sector, but ask for discretion.
Answer: B
10A data analyst is modeling a new data warehouse to analyze sales. One of the requirements is to analyze sales by region. Which of the following best describes the region table?
  • Fact
  • Dimensional
  • Bridge
  • Snowflake
Answer: B
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