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DA0-001 Practice Questions

CompTIA Data+ Certification Exam

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Total Questions : 396

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Question # 21

The senior management team at a company receives a detailed sales report at the end of each quarter. The report is several pages long and includes data from dozens of offices across the country. The team wants a better way to get a quick snapshot of what is included in the report. Which of the following modifications would best meet this requirement?

Options:

A.  

Modifying documentation elements to include reference data sources

B.  

Modifying the font size and style so important data points are more visible

C.  

Modifying the report to include a summary section with observations and insights

D.  

Modifying the report layout so it is easier to follow and understand

Discussion 0
Question # 22

A data analyst is performing a data merge within a spreadsheet using the tables below:

https://www.bing.com/images/blob?bcid=S1XCF9p02M4GjpbGxHj0lrIaj9sw.....4c Question # 22

The analyst is attempting to pull the addresses from Table 2 into Table 1 using the last names and is receiving an error message. Which of the following steps can the analyst perform to fix the error?

Options:

A.  

Use concatenate to combine the tables.

B.  

Ensure the formula is pulling from right to left.

C.  

Sort the data by the last name field.

D.  

Review the spelling and data type.

Discussion 0
Question # 23

A financial institution is reporting on sales performance to a company at the account level. Due to the sensitive nature of the government the does il with, some account information is not shown. Which of the following fields should be masked?

Options:

A.  

Sales volume

B.  

Start date

C.  

Product name

D.  

Customer name

Discussion 0
Question # 24

An analyst needs to provide a chart to identify the composition between the categories of the survey response data set:

Question # 24

Which of the following charts would be BEST to use?

Options:

A.  

Histogram

B.  

Pie

C.  

Line

D.  

Scatter pot

E.  

Waterfall

Discussion 0
Question # 25

Which of the following is the first step an analyst should perform upon receiving a business request for analysis?

Options:

A.  

Determine the data needs and sources for analysis.

B.  

Initiate the analysis for exploratory data analysis.

C.  

Review the business questions to understand the scope.

D.  

Finalize the methodology to solve the problem.

Discussion 0
Question # 26

Which of the following is the correct data type for text?

Options:

A.  

Boolean

B.  

String

C.  

Integer

D.  

Float

Discussion 0
Question # 27

After completing web scraping, which of the following file formats needs to be parsed?

Options:

A.  

.html

B.  

.txt

C.  

.csv

D.  

.tsv

Discussion 0
Question # 28

Encryption is a mechanism for protecting data.

When should encryption be applied to data?

Choose the best answer.

Options:

A.  

When data is at rest.

B.  

When data is at rest or in transit.

C.  

When data is in transit.

D.  

When data is at rest, unless you are using local storage.

Discussion 0
Question # 29

A data analyst was asked to create a visual representation of sales for the first quarter of 2020. Which of the following visualizations should be used when a time element is present?

Options:

A.  

A bubble chart

B.  

A line chart

C.  

A scatter plot

D.  

An infographic

Discussion 0
Question # 30

An analyst wants to include a graph in a quarterly sales report that shows the comparison between two quantitative variables. Which of the following visual diagrams can the analyst use to most effectively represent this relationship?

Options:

A.  

Bar graph

B.  

Heat map

C.  

Pie chart

D.  

Histogram

Discussion 0
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