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D467 - Exploring Data Exam 2024/2025 Questions With Completed & Verified Solutions.
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D467 - Exploring Data Exam 2024/2025 Questions With Completed & Verified Solutions.
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D467 - Exploring DataWhat are cookies?
Types of malware that can damage computers
Small files stored on computers that contain information about users
Programs that enable users to access websites
Pieces of code that store information about a website - ANS Small files stored on computers
that contain information about users
Fill in the blank: For data analytics projects, _____ data is typically preferred because users
know it originated within the organization.
second-party
third-party
multi-party
first-party - ANS first-party
A grocery store chain purchases customer data from a credit card company. The grocer uses
this data to identify its most loyal customers and offer them special promotions and discounts.
What type of data is being used in this scenario?
First-party
Multi-party
Third-party
Second-party - ANS Second-party
In data analytics, what term refers to all possible data values in a dataset?
Source
Representation
Population
Sample - ANS Population
An entertainment website displays a star rating for a movie based on user reviews. Users can
select from one to five whole stars to rate the movie. The star rating is an example of what type
of data? Select all that apply.
Continuous
Discrete
Ordinal
Nominal - ANS Discrete
,Ordinal
What type of data is the height of a skyscraper?
Discrete
Qualitative
Nominal
Continuous - ANS Continuous
In data analytics, what is the term for data that is generated from, and lives, outside of an
organization?
Peripheral
Outer
Internal
External - ANS External
What are the key characteristics of unstructured data? Select all that apply.
Fits neatly into rows and columns
Unorganized
May have an internal structure
Clearly identifiable construction - ANS Unorganized
May have an internal structure
Fill in the blank: A data model is used to organize _____ and how they relate to one another.
data visualizations
database structures
data elements
spreadsheet fields - ANS data elements
When discussing structured databases, data analysts refer to the data contained in a row as a
record. How do they refer to the data contained in a column?
Field
Subject
Character
Point - ANS Field
Fill in the blank: A data type is a specific kind of data _____ that tells what kind of value the data
is.
attribute
, frame
model
point - ANS attribute
What are the key characteristics of a text, or string, data type? Select all that apply.
Contains textual information
Only two possible values
Sequence of characters and punctuation
Has numerical percentages - ANS Contains textual information
Sequence of characters and punctuation
In a data table, where are fields contained?
Rows
Columns
Favorites
Charts - ANS Columns
When using long data, each subject has data in multiple rows. This is because each row
represents what?
Data in different formats
True or false data points
One observation per subject
Multiple values - ANS One observation per subject
What strategy do data professionals use in order to ensure unbiased sampling?
Use random sampling during data collection
Write survey questions that encourage specific responses
Store data in a spreadsheet
Skew results in a certain direction - ANS Use random sampling during data collection
Fill in the blank: Bias is a _____ preference in favor of or against a person, group of people, or
thing.
conscious or subconscious
sensible or insensible
fair or unfair
standard or substandard - ANS conscious or subconscious
Which of the following are examples of sampling bias? Select all that apply.
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