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Guide for DA0-001: CompTIA Data+ Certification

Quiz DA0-001: CompTIA Data+ Certification

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/ 10

Quiz

1/10
A data analyst needs to calculate the mean for Q1 sales using the data set below:

Certification Exam DA0-001: CompTIA Data+ Certification CompTIA CompTIA-DA0-001 1-2018672193

Which of the following is the mean?
Select the answer
1 correct answer
A.
$2,466.18
B.
$2,667.60
C.
$3,082.72
D.
$12,330.88

Quiz

2/10
V
A customer list from a financial services company is shown below:

Certification Exam DA0-001: CompTIA Data+ Certification CompTIA CompTIA-DA0-001 2-853849344

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?
Select the answer
1 correct answer
A.
Recode the variables.
B.
Calculate the percentiles of the variables.
C.
Calculate the standard deviations of the variables.
D.
Normalize the variables.

Quiz

3/10
Which of the following actions should be taken when transmitting data to mitigate the chance of a
data leak occurring? (Choose two.)
Select the answer
2 correct answers
A.
Data identification v
B.
Data processing
C.
Data Reporting
D.
Data encryption
E.
Data masking
F.
Fata removal

Quiz

4/10
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 -

Certification Exam DA0-001: CompTIA Data+ Certification CompTIA CompTIA-DA0-001 3-3076838506

Which of the following functions will allow the data analyst to organize the table in this manner?
Select the answer
1 correct answer
A.
Conditional formatting
B.
Grouping
C.
Filtering
D.
Sorting

Quiz

5/10
Which of the following BEST describes the issue in which character values are mixed with integer
values in a data set column?
Select the answer
1 correct answer
A.
Duplicate data
B.
Missing data
C.
Data outliers
D.
Invalid data type

Quiz

6/10
Which of the following is a process that is used during data integration to collect, blend, and load
data?
Select the answer
1 correct answer
A.
MDM
B.
ETL
C.
OLTP
D.
BI

Quiz

7/10
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?
Select the answer
1 correct answer
A.
Optimize the dashboard.
B.
Create subscriptions.
C.
Get stakeholder approval.
D.
Deploy to production.

Quiz

8/10
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:
v


Certification Exam DA0-001: CompTIA Data+ Certification CompTIA CompTIA-DA0-001 4-1634131809

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?
Select the answer
1 correct answer
A.
Date
B.
Mathematical
C.
Logical
D.
Aggregate

Quiz

9/10
Given the diagram below:
v


Certification Exam DA0-001: CompTIA Data+ Certification CompTIA CompTIA-DA0-001 5-1808979133

Which of the following data schemas shown?
Select the answer
1 correct answer
A.
Key-value pairs
B.
Online transactional processing
C.
Data Lake
D.
Relational database

Quiz

10/10
A company’s marketing department wants to do a promotional campaign next month. A data analyst
on the team has been asked to perform customer segmentation, looking at how recently a customer
bought the product, at what frequency, and at what value. Which of the following types of analysis
would this practice be considered?
v
Select the answer
1 correct answer
A.
Prescriptive
B.
Trend
C.
Gap
D.
Custer
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  • Quiz name:DA0-001: CompTIA Data+ Certification
  • Total number of questions:363
  • Number of questions for the test:50
  • Pass score:80%

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