CompTIA DA0-001 CompTIA Data+ Certification Online Training
CompTIA DA0-001 Online Training
The questions for DA0-001 were last updated at Nov 19,2024.
- Exam Code: DA0-001
- Exam Name: CompTIA Data+ Certification
- Certification Provider: CompTIA
- Latest update: Nov 19,2024
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
A data analyst is creating a report that will provide information about various regions, products, and time periods.
Which of the following formats would be the MOST efficient way to deliver this report?
- A . A workbook with multiple tabs for each region
- B . A daily email with snapshots of regional summaries
- C . A static report with a different page for every filtered view
- D . A dashboard with filters at the top that the user can toggle
Refer to the exhibit.
A customer list from a financial services company is shown below:
A data analyst wants to create a likely-to-buy score on a scale from 0 to 100, based on an average of the three numerical variables: number of credit cards, age, and income.
Which of the following should the analyst do to the variables to ensure they all have the same weight in the score calculation?
- A . Recode the variables.
- B . Calculate the percentiles of the variables.
- C . Calculate the standard deviations of the variables.
- D . Normalize the variables.
Which of the following actions should be taken when transmitting data to mitigate the chance of a data leak occurring? (Choose two.)
- A . Data identification
- B . Data processing
- C . Data Reporting
- D . Data encryption
- E . Data masking
- F . Fata removal
A data analyst has been asked to organize the table below in the following ways:
By sales from high to low –
By state in alphabetic order –
Which of the following functions will allow the data analyst to organize the table in this manner?
- A . Conditional formatting
- B . Grouping
- C . Filtering
- D . Sorting
Which of the following BEST describes the issue in which character values are mixed with integer values in a data set column?
- A . Duplicate data
- B . Missing data
- C . Data outliers
- D . Invalid data type
Which of the following is a process that is used during data integration to collect, blend, and load data?
- A . MDM
- B . ETL
- C . OLTP
- D . BI
An analyst has received the requirements for an internal user dashboard. The analyst confirms the data sources and then creates a wireframe.
Which of the following is the NEXT step the analyst should take in the dashboard creation process?
- A . Optimize the dashboard.
- B . Create subscriptions.
- C . Get stakeholder approval.
- D . Deploy to production.
A data analyst has been asked to derive a new variable labeled “Promotion_flag” based on the total quantity sold by each salesperson.
Given the table below:
Which of the following functions would the analyst consider appropriate to flag “Yes” for every salesperson who has a number above 1,000,000 in the Quantity_sold column?
- A . Date
- B . Mathematical
- C . Logical
- D . Aggregate
Refer to the exhibit.
Given the diagram below:
Which of the following data schemas shown?
- A . Key-value pairs
- B . Online transactional processing
- C . Data Lake
- D . Relational database
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