Latest DA0-001 Pass Guaranteed Exam Dumps with Accurate & Updated Questions [Q86-Q106]

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Latest DA0-001 Pass Guaranteed Exam Dumps with Accurate & Updated Questions

DA0-001 Exam Brain Dumps – Study Notes and Theory

CompTIA Data+ Certification Exam is a valuable certification for individuals who want to demonstrate their expertise in data management. CompTIA Data+ Certification Exam certification can help individuals stand out in the competitive job market and increase their earning potential. CompTIA Data+ Certification Exam certification is also a requirement for some job roles in the data management field, making it a must-have for individuals who want to advance their careers.

CompTIA DA0-001 is the certification exam for the CompTIA Data+ certification. CompTIA Data+ Certification Exam certification is designed to validate the skills and knowledge of candidates who work with data, whether it’s managing and analyzing data or working with database technologies. DA0-001 exam is designed to test the candidate’s understanding of data management, data analysis, and database technologies.

NEW QUESTION 86
A report is scheduled to run and be distributed at the end of business each day. On Mondays, one of the recipients opens the previous week’s reports and combines them to calculate the weekly totals and projections for the coming week. This is a tedious process, and the recipient asks an analyst for help. Which of the following should the analyst recommend?

Add calculation fields to the daily report so the totals are built in.

Create a new report with weekly totals set to run at the end of business on Friday.

Provide a daily summary to the report with totals to save the user the effort of manual calculations.

Reduce the frequency of the report to once a week and change the date range.

NEW QUESTION 87
Which of the following data types best describe 4Ac1? (Select two).

Alphanumeric

Symbolic

Numeric

Float

Boolean

String

NEW QUESTION 88
A customer’s telephone number is in the format 123-456-7890. Which of the following data types is used for the phone number?

Boolean

Date

Text

Number

NEW QUESTION 89
During data profiling, an analyst decides to recode the status column in the following data set:

Which of the following data concerns explains why the analyst wants to take this action?

Redundancy

Duplication

Invalidity

Inconsistency

NEW QUESTION 90
A data analyst needs to collect a similar proportion of data from every state. Which of the following sampling methods would be the most appropriate?

Systematic sampling

Convenience sampling

Stratified sampling

Random sampling

NEW QUESTION 91
Which of the following would be used to store unstructured data from different sources?

A data lake

A database management system

A database

A data warehouse

Explanation
This is because a data lake is a type of storage system that stores unstructured data from different sources, such as text, images, audio, video, etc. A data lake can be used to store unstructured data from different sources by using a schema-on-read approach, which means that it does not impose any structure or format on the data when it is stored, but rather applies it when it is read or accessed. A data lake can also be used to store unstructured data from different sources by using a distributed file system, such as Hadoop, which means that it can store large volumes and varieties of data across multiple servers or nodes. The other storage systems are not used to store unstructured data from different sources. Here is why:
A database management system is a type of software application that manages and controls databases, which are collections of structured or semi-structured data that are organized into tables, rows, and columns. A database management system is not used to store unstructured data from different sources, but rather to store structured or semi-structured data from specific sources by using a schema-on-write approach, which means that it imposes a structure or format on the data when it is stored, and requires it to follow certain rules and constraints, such as primary keys, foreign keys, or referential integrity.
A database is a type of storage system that stores structured or semi-structured data that are organized into tables, rows, and columns. A database is not used to store unstructured data from different sources, but rather to store structured or semi-structured data from specific sources by using a relational model, which means that it establishes and maintains relationships between different tables based on common columns or keys. A database can also be used to store structured or semi-structured data from specific sources by using a query language, such as SQL, which means that it can access and manipulate the data using statements or commands.
A data warehouse is a type of storage system that stores structured or semi-structured data that are integrated and aggregated from different sources or systems, such as databases, cloud services, or web applications. A data warehouse is not used to store unstructured data from different sources, but rather to store structured or semi-structured data from various sources by using an ETL process, which means that it extracts, transforms, and loads the data into a common format, structure, or schema. A data warehouse can also be used to store structured or semi-structured data from various sources by using an OLAP model, which means that it supports online analytical processing of the data using multidimensional cubes or queries.

NEW QUESTION 92
Which one of the following is not a good example of discrete data type?

Number of children.

Years of experience.

Attendees at a meeting.

Temperature of a room.

NEW QUESTION 93
You are looking at a dashboard is sales by a US state and would like to see the sales for individual counties within a specific state What action should you take?

Deviate.

Roll up.

Aggregate.

Drill down.

NEW QUESTION 94
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?

Star.

Sun.

Snowflake.

Comet.

NEW QUESTION 95
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 workbook with multiple tabs for each region

A daily email with snapshots of regional summaries

A static report with a different page for every filtered view

A dashboard with filters at the top that the user can toggle

The best format to deliver this report is D. A dashboard with filters at the top that the user can toggle.
A dashboard is a visual display of the most important information needed to achieve one or more objectives, consolidated and arranged on a single screen so the information can be monitored at a glance1 A dashboard with filters at the top that the user can toggle would allow the user to easily and quickly access the information they need about various regions, products, and time periods, without having to navigate through multiple tabs, pages, or emails. A dashboard with filters would also enable the user to compare and contrast different views of the data and see how they change over time. A dashboard with filters would also be more interactive and engaging than a static or email report2 A workbook with multiple tabs for each region would not be an efficient way to deliver this report, because it would require the user to switch between different tabs to see the information they need. This would make it harder to compare and contrast different regions, products, and time periods, and also increase the risk of errors or confusion. A workbook with multiple tabs would also be less visually appealing and more cluttered than a dashboard3 A daily email with snapshots of regional summaries would not be an efficient way to deliver this report, because it would limit the user’s ability to explore the data in depth and customize their view. A daily email would also be dependent on the frequency and timing of the email delivery, which might not match the user’s needs or preferences. A daily email would also be more likely to be ignored or deleted than a dashboard that is always accessible.
A static report with a different page for every filtered view would not be an efficient way to deliver this report, because it would create a very long and cumbersome report that would be difficult to read and understand. A static report would also not allow the user to change or update the filters as they wish, or see how the data changes over time. A static report would also be less interactive and engaging than a dashboard.

NEW QUESTION 96
The current date is July 14, 2020. A data analyst has been asked to create a report that shows the company’s year-over-year Q2 2020 sales. Which of the following reports should the analyst compare?

A Q2 2020 and Q4 2019

YTD 2020 and YTD 2019

Q2 2020 and Q2 2019

Q2 2020 and Q2 2021

NEW QUESTION 97
Which of the following best describes how discrete data differs from continuous data?

Discrete data cannot create a sloped line.

Discrete data can only be a finite number of values.

Discrete data can have decimal points.

Discrete data applies only to numbers.

NEW QUESTION 98
An analyst modified a data set that had a number of issues. Given the original and modified versions:

Which of the following data manipulation techniques did the analyst use?

Imputation

Recoding

Parsing

Deriving

NEW QUESTION 99
Which of the following is a common data analytics tool that is also used as an interpreted, high-level, general-purpose programming language?

SAS

Microsoft Power BI

IBM SPSS

Python

NEW QUESTION 100
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 product, at what frequency, and at what value. Which of the following types of analysis would this practice be considered?

Prescriptive

Trend

Gap

Custer

NEW QUESTION 101
A data analyst is asked on the morning of April 9, 2020, to create a sales report that identifies sales year to date. The daily sales data is current through the end of the day. Which of the following date ranges should be on the report?

January 1, 2020 to April 1, 2020

January 1, 2020 to April 7, 2020

January 1, 2020 to April 8, 2020

January 1, 2020 to April 9, 2020

NEW QUESTION 102
Given the table below:

Which of the following variable types BEST describes the “Year” column?

Numeric

Date

Alphanumeric

Text

NEW QUESTION 103
A data analyst was asked to create a chart that shows the relationship between study hours and exam scores for each student using the data sets in the table below:

Which of the following charts would BEST represent the relationship between the variables?

A histogram

A scatter plot

A heat map

A bar chart

NEW QUESTION 104
A data analyst was asked to create a chart that shows the relationship between study hours and exam scores for each student using the data sets in the table below:

Which of the following charts would BEST represent the relationship between the variables?

A histogram

A scatter plot

A heat map

A bar chart

NEW QUESTION 105
Which of the following data manipulation techniques is an example of a logical function?

WHERE

AGGREGATE

BOOLEAN

NEW QUESTION 106
A data analyst must separate the column shown below into multiple columns for each component of the name:

Which of the following data manipulation techniques should the analyst perform?

Imputing

Transposing

Parsing

Concatenating

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