Real DA0-001 Exam PDF Test Engine Practice Test Questions
CompTIA DA0-001 Real 2023 Braindumps Mock Exam Dumps
NEW QUESTION 34
An analyst is designing a dashboard to determine which site has the highest percentage of new customers. The analyst must choose an appropriate chart to include in the dashboard. The following data is available:
Which of the following types of charts should be considered to BEST display the data?
- A. Include a pie chat using the site and percentage of new customers data.
- B. Include a scatter chart using the site and the percent of new customers data.
- C. Include a bar chart using the site and the percentage of new customers data.
- D. Include a line chart using the site and the percentage of new customers data.
Answer: C
NEW QUESTION 35
Which of the following roles is responsible for ensuring an organization's data quality, security, privacy, and regulatory compliance?
- A. Data owner.
- B. Data processor.
- C. Data custodian.
- D. Data steward.
Answer: D
Explanation:
Correct answer B. Data steward.
A data steward is responsible for leading an organization's data governance activities, which include data quality, security, privacy, and regulatory compliance.
NEW QUESTION 36
Emma is working in a data warehouse and finds a finance fact table links to an organization dimension, which in turn links to a currency dimension that not linked to the fact table.
What type of design pattern is the data warehouse using?
- A. Sun.
- B. Comet.
- C. Star.
- D. Snowflake.
Answer: D
Explanation:
Correct answer C. Snowflake.
Since the dimension links to a dimension that isn't connected to the fact table, it must be a Snowflake, with a Star, all dimensions link directly to the fact table, Sun and Comet are not data warehouse design patterns.
NEW QUESTION 37
What term is used to describe an interactive visualization that encourages people to explore data dynamically?
- A. Graphical representation.
- B. Data set.
- C. Dashboard.
- D. Data point.
Answer: C
Explanation:
A dashboard is a visual display of all of your data. While it can be used in all kinds of different ways, its primary intention is to provide information at-a-glance, such as KPIs. A dashboard usually sits on its own page and receives information from a linked database.
NEW QUESTION 38
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 static report with a different page for every filtered view
- B. A dashboard with filters at the top that the user can toggle
- C. A daily email with snapshots of regional summaries
- D. A workbook with multiple tabs for each region
Answer: B
NEW QUESTION 39
What SQL command is used to delete an entire table from a database?
- A. ALTER.
- B. DELETE.
- C. MODIFY.
- D. DROP.
Answer: D
NEW QUESTION 40
While reviewing survey data, an analyst notices respondents entered "Jan," "January," and "01" as responses for the month of January. Which of the following steps should be taken to ensure data consistency?
- A. Replace any of the responses that have "01".
- B. Sort any of the responses that say "Jan" and update them to "01".
- C. Delete any of the responses that do not have "January" written out.
- D. Filter on any of the responses that do not say "January" and update them to "January".
Answer: D
NEW QUESTION 41
In a tabular dataset, what term is used to describe the data that appears in a single row?
- A. Field.
- B. Attribute.
- C. Table.
- D. Records.
Answer: D
NEW QUESTION 42
Analyzing a data point, you find that the point is 1 standard deviation above the mean.
What is the z-score for this data point?
- A. 0
- B. -0.5
- C. 1
- D. 0.5
Answer: C
NEW QUESTION 43
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 contact information, and their total sales over the past year.
The VP does not have any specialized analytics skills or software but would like to make some personal notes on the dataset.
What would be the best tool for Samantha to use to share this information?
- A. Power BI.
- B. SAS.
- C. Minitab.
- D. Microsoft Excel.
Answer: D
Explanation:
Microsoft Excel.
This scenario presents a very simple use case where the business leader needs a dataset in an easy-to-access form and will not be performing any detailed analysis.
A simple spreadsheet, such as Microsoft Excel, would be the best tool for this job.
There is no need to use a statistical analysis package, such as SAS or Minitab, as this would likely confuse the VP without adding any value. The same is true of an integrated analytics suite, such as Power BI.
NEW QUESTION 44
A data analyst needs to create a weekly recurring report on sales performance and distribute it to all sales managers. Which of the following would be the BEST method to automate and ensure successful delivery for this task?
- A. Implement subscription access delivery.
- B. Upload the report to the server.
- C. Use scheduled report delivery.
- D. Print out a copy.
Answer: C
NEW QUESTION 45
Which one of the following is a measure of dispersion?
- A. Variance.
- B. Mode.
- C. Median.
- D. Mean.
Answer: A
NEW QUESTION 46
Which one of the following values will appear first if they are sorted in descending order?
- A. Adam.
- B. Xavier.
- C. Aaron.
- D. Molly.
Answer: B
NEW QUESTION 47
The number of phone calls that call center receives in a day is an example of:
- A. discrete data.
- B. categorical data.
- C. continuous data.
- D. ordinal data.
Answer: A
NEW QUESTION 48
Which of the following is an example of a at flat file?
- A. PDF file
- B. JPEG file
- C. JSON file
- D. CSV file
Answer: B
NEW QUESTION 49
Which of the following are reasons to create and maintain a data dictionary? (Choose two.)
- A. To remember specifics about data fields
- B. To reduce processing power requirements
- C. To provide continuity through personnel turnover
- D. To specify user groups for databases
- E. To improve data acquisition
- F. To confine breaches of PHI data
Answer: A,E
NEW QUESTION 50
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