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Read the latest free DA0-001 Dumps exam questions and answers online:
| Number of exam questions | Exam name | From | Release time |
| 15 | CompTIA Data+ | Lead4Pass | Dec 16, 2022 |
Question 1:
Which of the following is the correct data type for text?
A. Boolean
B. String
C. Integer
D. Float
Correct Answer: B
Question 2:
An analyst needs to provide a chart to identify the composition between the categories of the survey response data set:
Which of the following charts would be BEST to use?
A. Histogram
B. Pie
C. Line
D. Scatter pot
E. Waterfall
Correct Answer: B
Question 3:
You would like to measure how well an organization is achieving its goals.
What type of analysis should you perform?
A. Performance analysis.
B. Outlier analysis.
C. Predictive analysis.
D. Trend analysis.
Correct Answer: A
Performance analysis is the technique of studying or comparing the performance of a specific situation in contrast to the aim and yet executed. In Human Resource, performance analysis can help to review an employee\’s contribution towards a project or assignment, which they allotted him or her.
Question 4:
What test formatting option indicates that a field is required in an entity relationship diagram?
A. Italicization.
B. Boldfacing.
C. Capitalization.
D. Underlining.
Correct Answer: B
Question 5:
What is NOT a characteristic of a good data steward?
A. A good technology expert.
B. Collaborative.
C. A subject matter expert.
D. Influential.
Correct Answer: A
Provide the technical expertise around source systems, extract, transform, and load (ETL) processes, data stores, data warehouses, and Business intelligence tools.
Question 6:
Amanda needs to create a dashboard that will draw information from many other data sources and present 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.
Correct Answer: D
SPSS Modeler.
QuickSight, Tableau, and Power BI are all powerful analytics and reporting tools that can pull data from a variety of sources. SPSS Modeler is a powerful predictive analytics platform that is designed to bring predictive intelligence to decisions made by individuals, groups, systems and your enterprise.
Question 7:
What is the maximum number of values that may be assigned to a single key in a key/value store?
A. 3
B. 1
C. 2
D. No maximum
Correct Answer: D
Question 8:
You are measuring how much a child has grown over the past year and would like to express that using a percentage.
What calculation is most appropriate?
A. Percent deviation.
B. Percent difference.
C. Percent variance.
D. Percent change.
Correct Answer: D
Question 9:
What type of visualization allows the use of a bar chart for continuous variables?
A. Waterfall chart
B. Line chart
C. Histogram
D. Tree map
Correct Answer: C
Question 10:
Oliver is designing an ETL process to copy sales data into a data warehouse on a hourly basis.
What approach should Oliver choose that would be most efficient and minimize the chance of losing historical data?
A. Bulk load.
B. Purge and load.
C. Use ELT instead of ETL.
D. Delta load.
Correct Answer: D
Delta load
Since Oliver needs to migrate changes every hour, a delta load is the best approach.
Question 11:
What analytics suite is offered by Microsoft and directly integrates with SQL Server Databases?
A. Qlik.
B. Power BI.
C. Domo.
D. Dataroma.
Correct Answer: B
Power BI is a collection of software services, apps, and connectors that work together to turn your unrelated sources of data into coherent, visually immersive, and interactive insights. Your data may be an Excel spreadsheet, or a collection of cloud-based and on-premises hybrid data warehouses.
Question 12:
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.
Correct Answer: C
INSERT
The INSERT command is used to add new records to a database table.
The SELECT command is used to retrieve information from a database. It\’s the most commonly used
command in SQL because it is used to pose queries to the database and retrieve the data that you\’re
interested in working with.
The UPDATE command is used to modify rows in the database.
The CREATE command is used to create a new table within your database or a new database on your
server.
Question 13:
When taking the test at home, how much extra time is allowed compared to the in-person test?
A. 10 minutes
B. 30 minutes
C. None.
D. 15 minutes
Correct Answer: C
Question 14:
What R package makes it easy to work with dates?
A. Lubridate.
B. Datemath.
C. Stringr.
D. ggplot.
Correct Answer: A
Lubridate is an R package that makes it easier to work with dates and times.
Question 15:
Which of the following is a common data analytics tool that is also used as an interpreted, high-level, general-purpose programming language?
A. SAS
B. Microsoft Power B1
C. IBM SPSS
D. Python
Correct Answer: D
…
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