Master CompTIA Data+ Exam (2025) DA0-002: Your Gateway to Data Stardom

[Data Governance]

A company reports on seven years of data in a sales dashboard. The dashboard pulls from a sales database that has 30 years of dat

a. The dashboard performance is slow. Which of the following is the best way to improve the dashboard's performance?

[Data Analysis]

A business intelligence analyst is creating an employee retention dashboard that looks at data from the last five years. The analyst is interested in identifying patterns that can be studied further. Which of the following is the best method to apply to the dashboard?

[Data Analysis]

A data professional wants to identify all customers who made a purchase in January. Given the following table:

CustomerID

Month

Sales

0001

January

13000

0002

March

10000

0003

April

23000

0004

May

10000

Which of the following types of functions should the professional use to flag the customers?

[Data Acquisition and Preparation]

Due to new reporting requirements, a data analyst must add new classification codes to historical dat

a. Which of the following is the best technique for this task?

[Data Analysis]

A data analyst needs to create a report that anticipates the number of calls received daily. Which of the following is the best statistical method to use?