| Exam Code | DA0-001 |
| Exam Name | CompTIA Data+ Certification Exam |
| Questions | 396 |
| Update Date | July 16,2026 |
| Price |
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Which one of the following is a common data warehouse schema?
A. Snowflake.
B. Square.
C. Spiral.
D. Sphere.
Which one of the following in NOT a common data integration tool?
A. XSS
B. ELT
C. ETL
D. APIs
Which one of the following is a measure of dispersion?
A. Variance.
B. Mode.
C. Median.
D. Mean.
Analytics reports should follow corporate style guidelines.
A. True.
B. False.
Alex wants to use data from his corporate sale, CRM, and shipping systems to try and predict futuresales.Which of the following systems is the most appropriate?Choose the best answer.
A. Data mart.
B. OLAP.
C. Data Warehouse.
D. OLTP.
Samantha needs to share a list of her organization's top 50 customers with the VP of sales.She would like to include the name of the customer, the business they represent, their contactinformation, and their total sales over the past year.The VP does not have any specialized analytics skills or software but would like to make somepersonal notes on the dataset.What would be the best tool for Samantha to use to share this information?
A. Power BI.
B. Microsoft Excel.
C. Minitab.
D. SAS.
Jhon is working on an ELT process that sources data from six different source systems.Looking at the source data, he finds that data about the sample people exists in two of six systems.What does he have to make sure he checks for in his ELT process?Choose the best answer.
A. Duplicate Data.
B. Redundant Data.
C. Invalid Data.
D. Missing Data.
Daniel is using the structured Query language to work with data stored in relational database.He would like to add several new rows to a database table.What command should he use?
A. SELECT.
B. ALTER.
C. INSERT.
D. UPDATE.
Amanda needs to create a dashboard that will draw information from many other data sources andpresent it to business leaders.Which one of the following tools is least likely to meet her needs?
A. QuickSight.
B. Tableau.
C. Power BI.
D. SPSS Modeler.
Andy is a pricing analyst for a retailer. Using a hypothesis test, he wants to assess whether peoplewho receive electronic coupons spend more on average.What should Andy's null hypothesis be?
A. People who receive electronic coupons spend more on average.
B. People who receive electronic coupons spend less on average.
C. People who receive electronic coupons do not spend more on average.
D. People who do not receive electronic coupons spend more on average.
