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DA0-001 Practice Exam Questions and Answers

CompTIA Data+ Certification Exam

Last Update 4 days ago
Total Questions : 314

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Question # 1

Which of the following should be accomplished NEXT after understanding a business requirement for a data analysis report?

Options:

A.  

Rephrase the business requirement.

B.  

Determine the data necessary for the analysis.

C.  

Build a mock dashboard/presentation layout.

D.  

Perform exploratory data analysis.

Discussion 0
Question # 2

A research analyst collects ten data points from 1.000 specimens. The analyst will not need any additional data to complete the analysis and will not need to retrieve information by specifier. Which of the following is the best data structure for the analyst to use?

Options:

A.  

NoSQL

B.  

Flat file

C.  

JSON

D.  

Relational database

Discussion 0
Question # 3

A company's human resources department has asked a data analyst to categorize the income of all employees into five salary bands:

Which of the following types of functions would be the most appropriate to use?

Options:

A.  

Statistical

B.  

Aggregate

C.  

Logical

D.  

Mathematical

Discussion 0
Question # 4

A data analyst needs to write a SOL query measuring last month's website visits and distribute a summary report to the marketing team. Which of the following is the analyst creating?

Options:

A.  

Date range

B.  

Distribution list

C.  

Data content

D.  

Report view

Discussion 0
Question # 5

A development company is constructing a new unit in its apartment complex. The complex has the following floor plans:

Using the average cost per square foot of the original floor plans, which of the following should be the price of the Rose unit?

Options:

A.  

$640,900

B.  

$690,000

C.  

$705,200

D.  

$702,500

Discussion 0
Question # 6

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

Options:

A.  

WHERE

B.  

AGGREGATE

C.  

BOOLEAN

D.  

IF

Discussion 0
Question # 7

Given the data below:

In which of the following file formats is the data presented?

Options:

A.  

Xs

B.  

CSV

C.  

RIF

D.  

XML

Discussion 0
Question # 8

A data analyst is designing a dashboard that will provide a story of sales and determine which site is providing the highest sales volume per customer 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?

Options:

A.  

Include a line chart using the site and average sales per customer.

B.  

Include a pie chart using the site and sales to average sales per customer.

C.  

Include a scatter chart using sales volume and average sales per customer.

D.  

Include a column chart using the site and sales to average sales per customer.

Discussion 0
Question # 9

Which of the following is a non-parametric test?

Options:

A.  

One-sample t-test

B.  

Two-way ANOVA

C.  

Correlation coefficient

D.  

Spearman's rank correlation

Discussion 0
Question # 10

What SQL command is used to delete an entire table from a database?

Options:

A.  

DROP.

B.  

MODIFY.

C.  

DELET

E.  

D.  

ALTER.

Discussion 0
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