Free CompTIA DA0-002 Practice Questions & Answers 2026 Part1 | CompTIA Data+

A data analyst receives a notification that a customized report is taking too long to load. After reviewing the system, the analyst does not find technical or operational issues.Which of the following should the analyst try next?

[Visualization and Reporting] A data analyst is generating a custom report for a Chief Executive Officer's executive meeting. Later, the analyst learns that other custom reports will be required for future executive meetings. Which of the following delivery methods should the analyst use?

Which of the following is the best way to ensure a procedure performs appropriately during heavy use?

A data analyst is joining two tables with different content and one common field.Which of the following should the analyst do to most efficiently meet this requirement?

[Data Governance]A data analyst receives a notification that a customized report is taking too long to load. Afterreviewing the system, the analyst does not find technical or operational issues. Which of thefollowing should the analyst try next?

A data analyst needs to create and deliver a dashboard that displays the company's financial transactions as they are updated.Which of the following delivery methods should the analyst consider? (Select two).

Which of the following AI types is the best option for time-series forecasting?

Which of the following best describes the reason an analyst would reference a data dictionary versus a source's metadata?

Which of the following best describes the reason an analyst would reference a data dictionary versus a source's metadata?

A data analyst is analyzing the following dataset: Transaction Date Quantity Item Item Price 12/12/12 11 USB Cords 9.99 11/11/11 3 Charging Block 8.89 10/10/10 5 Headphones 50.15 Which of the following methods should the analyst use to determine the total cost for each transaction? This question falls under the Data Analysis domain, focusing on calculating new values from existing data. The task is to determine the total cost per transaction, which involves multiplying Quantity by Item Price. Parsing (Option A): Parsing involves breaking down data (e.g., splitting a string), not calculating totals. Scaling (Option B): Scaling adjusts numerical values to a common range (e.g., normalization), not relevant for calculating totals. Compressing (Option C): Compressing reduces data size, not applicable to calculating costs. Deriving (Option D): Deriving involves creating new data fields by performing calculations on existing ones (e.g., Total Cost = Quantity Item Price), which fits the task. The DA0-002 Data Analysis domain includes 'applying the appropriate descriptive statistical methods,' such as deriving new fields through calculations to analyze data. ==============

A report triggers an error that prevents information from being displayed. However, the report was functional before a database upgrade. Which of the following should a data analyst do first to troubleshoot the problem?

[Data Governance]A company gives users adequate data access permissions to allow them to fulfill their duties but nothing more. Which of the following concepts best describes this practice?

Which of the following would be the best way to identify multicollinear attributes in a data set?

A data analyst pulls a table similar to the following one:ID Type TypeID Phone1 Full Time Full Time 1 Mobile2 Part Time Part Time 2 Work3 Full Time Full Time 3 MobileWhich of the following best explains the data issue with TypeID?

A recent server migration applied an update to dataset naming conventions. Multiple users are now reporting stale information in an existing dashboard. The date in the dataset confirms a successful data refresh. Which of the following should a data analyst do first?

Which of the following AI types is the best option for time-series forecasting?

A data analyst is generating a custom report for a Chief Executive Officer's executive meeting. Later, the analyst learns that other custom reports will be required for future executive meetings.Which of the following delivery methods should the analyst use?

Which of the following pieces of information, if made public, results in a data privacy violation?

A data analyst is joining two tables with different content and one common field.Which of the following should the analyst do to most efficiently meet this requirement?

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

The sales department wants to include the composition of total sales amounts across all three sales channels in a report. Given the following sample sales table: Which of the following visualizations is the most appropriate?

A data analyst is creating a dashboard to monitor and manage processes on a daily, weekly, and quarterly basis. Which of the following types of dashboards is the best for this purpose?

A data analyst needs to generate a list of employees who currently live in Dade, FL. Given the following table:Which of the following SQL statements should the analyst use to complete this task?

[Data Acquisition and Preparation] Which of the following best describes the semi - structured data that is gathered when web scraping?

A data analyst reviews the following data set:

A data analyst receives a notification that a customized report is taking too long to load. After reviewing the system, the analyst does not find technical or operational issues.Which of the following should the analyst try next?

Which of the following is the best place to store digital documents?

A data analyst is joining two tables with different content and one common field.Which of the following should the analyst do to most efficiently meet this requirement?

A data analyst 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:Customer_ID Region Amount_spent Product_category Quantity_of_items00123 East 20000 Baby 400124 West 30000 Home 600125 South 40000 Garden 700126 North 50000 Furniture 800127 East 60000 Baby 10Which of the following techniques should the team use for this task?

A data analyst creates a report that identifies the middle 50% of the collected data. Which of the following best describes the analyst's findings?

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?

A grocery store wants to view the revenue from the previous year, highlighting individual departments.Which of the following is the most appropriate chart to communicate this information?

[Visualization and Reporting]A sales manager wants a dashboard that shows sales aggregated by region and identifies high-volume sales by salesperson per region. Which of the following communication techniques best displays this information?

An administrator needs to design a table that will include foreign words. Which of the following is the best option for storing non-native language characters?

Which of the following best describes the function of a data type? This question falls under the Data Concepts and Environments domain, focusing on the purpose of data types in data management. Data types define how data is stored and interpreted. To provide a generic identifier for files used in analysis (Option A): Data types apply to fields within datasets, not files. To identify the program needed to open a file (Option B): File extensions (e.g., .csv) identify programs, not data types. To differentiate the real value of the field in its context (Option C): Data types (e.g., integer, string, date) define how a field's value is interpreted (e.g., ''123'' as a number vs. text), ensuring its real meaning in context, making this the correct answer. To make the addition of individual records simpler (Option D): Data types don't directly simplify record addition; they ensure proper data handling. The DA0-002 Data Concepts and Environments domain includes understanding 'data schemas and dimensions,' and data types ensure fields are interpreted correctly in their context. ==============

Which of the following AI types is the best option for time-series forecasting?

A data analyst pulls a table similar to the following one:ID Type TypeID Phone1 Full Time Full Time 1 Mobile2 Part Time Part Time 2 Work3 Full Time Full Time 3 MobileWhich of the following best explains the data issue with TypeID?

[Data Governance]Which of the following allows a data analyst to send out a spreadsheet containing sensitive information without revealing personal details?

Which of the following best describes the reason an analyst would reference a data dictionary versus a source's metadata?

[Data Governance]Which of the following pieces of information, if made public, results in a data privacy violation?

A data analyst needs to provide a weekly sales report for the Chief Financial Officer. Which of the following delivery methods is the most appropriate?

Which of the following AI types is the best option for time-series forecasting?

[Data Concepts and Environments]A company has a document that includes the names of key metrics and the standard for how those metrics are calculated company-wide. Which of the following describes this documentation?

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

A data analyst receives a notification that a customized report is taking too long to load. After reviewing the system, the analyst does not find technical or operational issues.Which of the following should the analyst try next?

A data analyst is joining two tables with different content and one common field.Which of the following should the analyst do to most efficiently meet this requirement?

Which of the following best describes the semi-structured data that is gathered when web scraping?

A data analyst receives a set of requirements to create an analytical report that focuses on locations and distances as they relate to a city. Which of the following visual elements is the most appropriate for this task?

A sales manager wants a dashboard that shows sales aggregated by region and identifies high- volume sales by salesperson per region. Which of the following communication techniques best displays this information?

The following SQL code returns an error in the program console:SELECT firstName, lastName, SUM(income)FROM companyRosterSORT BY lastName, incomeWhich of the following changes allows this SQL code to run?