# CompTIA DA0-001 Real Exam Questions

##### The questions for DA0-001 were last updated at Nov 02,2024.

**Exam Code:**DA0-001**Exam Name:**CompTIA Data+ Certification**Certification Provider:**CompTIA**Latest update:**Nov 02,2024

Five dogs have the following heights in millimeters: 300, 430, 170, 470, 600

Which of the following is the mean height for the five dogs?

- A . 394mm
- B . 405mm
- C . 493mm
- D . 504mm

An analyst needs to conduct a quick analysis.

Which of the following is the FIRST step the analyst should perform with the data?

- A . Conduct an exploratory analysis and use descriptive statistics.
- B . Conduct a trend analysis and use a scatter chart.
- C . Conduct a link analysis and illustrate the connection points.
- D . Conduct an initial analysis and use a Pareto chart.

Refer to the exhibit.

A data analyst needs to calculate the mean for Q1 sales using the data set below:

Which of the following is the mean?

- A . $2,466.18
- B . $2,667.60
- C . $3,082.72
- D . $12,330.88

An analyst is working with the income data of suburban families in the United States. The data set has a lot of outliers, and the analyst needs to provide a measure that represents the typical income.

Which of the following would BEST fulfill the analyst’s goal?

- A . Median
- B . Mean
- C . Mode
- D . Standard deviation

Refer to the exhibit.

Given the table below:

Which of the following variable types BEST describes the “Year” column?

- A . Numeric
- B . Date
- C . Alphanumeric
- D . Text

Which one of the following in NOT a common data integration tool?

- A . XSS
- B . ELT
- C . ETL
- D . APIs

Which of the following data manipulation techniques is an example of a logical function?

- A . WHERE
- B . AGGREGATE
- C . BOOLEAN
- D . IF

Which of the following data manipulation techniques is an example of a logical function?

- A . WHERE
- B . AGGREGATE
- C . BOOLEAN
- D . IF

Which of the following descriptive statistical methods are measures of central tendency? (Choose two.)

- A . Mean
- B . Minimum
- C . Mode
- D . Variance
- E . Correlation
- F . Maximum

An analyst runs a report on a daily basis, and the number of datapoints must be validated before the data can be analyzed. The number of datapoints increases each day by approximately 20% of the total number from the day before. On a given day, the number of datapoints was 8,798.

Which of the following should be the total number of datapoints on the next day?

- A . 7,038
- B . 9,600
- C . 10,600
- D . 10,800