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WorksheetsExploring Big Data
Total questions: 46
Worksheet time: 31mins
What is Big Data?
A large volume of data that can be structured or unstructured and is generated at high velocity.
A small amount of data that is easy to process.
A type of data that is only found in large corporations.
A specific software used for data analysis.
How are new technologies and innovation driving the adoption of Big Data?
By increasing data storage capabilities
By reducing the cost of data processing
By enhancing data analysis techniques
All of the above
Big Data is increasingly available to organizations in a range of sectors.
True
False
Big Data offers organizations opportunities such as:
Improved decision making
Increased data storage costs
Reduced data accuracy
Decreased customer insights
What is big data?
A small set of organized data
An umbrella term for all non-traditional strategies and technologies required to organize, process, and gather insights from large datasets
A type of software
A traditional database management system
Who said, 'Everything is going to be connected to cloud and data... All of this will be mediated by software'?
Satya Nadella
Sundar Pichai
Tim Cook
Elon Musk
How often is five exabytes of data created now?
Every 2 days
Every 2 weeks
Every 2 months
Every 2 years
What is data?
Data is a collection of facts, such as numbers, words, measurements, observations or even just descriptions of things.
Data is a type of food.
Data is a form of art.
Data is a kind of animal.
Big data is:
a small amount of data
a large volume of data
a type of database
a programming language
The main difference between big data and standard data is:
Volume, velocity, and variety of data
The color of the data
The source of the data
The cost of storing the data
Big data sets can't be handled with standard data applications and tools because:
They are too large and complex for traditional tools to process efficiently.
They are not compatible with any existing data applications.
They require less storage space than standard data sets.
They can be easily managed with simple spreadsheets.
What is 'big data'?
A large volume of data that is difficult to process using traditional methods
A small dataset that is easy to manage
A type of database
A programming language
The three major categories of big data are:
Volume, Velocity, Variety
Volume, Value, Variety
Velocity, Variety, Veracity
Volume, Velocity, Veracity
Structured data is organized into a relational database with unique identifiers. What is an example of structured data?
A. JSON file
B. XML file
C. SQL database
D. CSV file
What are the three major categories of big data?
A) Structured, Unstructured, Semi-structured
B) Raw, Processed, Analyzed
C) Text, Image, Video
D) Numeric, Categorical, Ordinal
Which category of big data is represented by the image?
Structured Data
Unstructured Data
Semi-structured Data
Raw Data
What is one of the categories of big data shown in the image?
Structured Data
Unstructured Data
Semi-structured Data
What is unstructured data?
Data that is organized in a predefined manner
Data that lacks a specific format or structure
Data that is stored in a database
Data that is always in text format
Which of the following is an example of unstructured data?
A) A spreadsheet
B) A database
C) Text-based customer feedback
D) A CSV file
Structured Data is:
A type of data that is organized and easily searchable
Data that is unorganized and difficult to search
A programming language
A type of database
What is Semi-structured Data?
Data that is organized in a fixed schema
Data that is not organized at all
Data that does not conform to a fixed schema but has some organizational properties
Data that is stored in a relational database
An example of unstructured data is:
A spreadsheet
A database
A text document
A graph
Semi-structured data does not exist in a database but has relational values and organization that can be analyzed. An example of semi-structured data is text in a document that is marked up or tagged with descriptions, as XML does in a word processing application. True or False?
True
False
What is an example of semi-structured data?
A database
A text document marked up with XML
A spreadsheet
A plain text file
In 2020, how much new data was reported to be stored on Facebook's databases every day?
1 petabyte
4 petabytes
10 petabytes
20 petabytes
What is the total amount of data in the world estimated to be by the end of 2020?
44 zettabytes
44 gigabytes
44 terabytes
44 petabytes
What is the estimated total amount of data in the world by the end of 2020?
44 zettabytes
50 zettabytes
30 zettabytes
60 zettabytes
The primary components of Phase 1 (1970-2000) in the evolution of Big Data include:
Development of relational databases and data warehousing
Introduction of NoSQL databases
Advancements in machine learning algorithms
Emergence of cloud computing
What are the two primary components of Phase 1 of Big Data?
In what year did IBM introduce the use of the Relational Database Management System (RDBMS)?
Explain the significance of the US government's creation of the world's first data center in Phase 1 of Big Data.
It marked the beginning of the digital age.
It was a response to the Cold War.
It aimed to improve data storage and processing.
It was a collaboration with private tech companies.
What was the focus of data analysis for many organizations in phase 2 of big data?
Customer behavior analysis
Financial forecasting
Supply chain optimization
Social media trends
The expansion of web traffic and online stores in the 2000s led to significant changes in data analysis. What was one major impact?
Increased need for data storage solutions
Decrease in online consumer behavior tracking
Reduction in data analysis tools
Less emphasis on data-driven decision making
Which companies started using big data to analyze customer behavior during this phase?
Company A
Company B
Company C
Company D
The growth of unstructured data presented challenges to organizations in terms of:
Data storage and management
Improved data analytics
Enhanced data security
Reduced data redundancy
What is the main focus of the third phase of big data?
Mobile and sensor-based content
Cloud computing
Social media
Artificial intelligence
How have smartphones contributed to big data according to the passage?
By increasing data collection through apps and sensors
By reducing the amount of data generated
By limiting access to data
By making data collection more expensive
True or False: The use of sensor-based devices like TVs and refrigerators does not contribute to big data.
True
False
What potential benefits does big data offer to organizations if implemented appropriately?
Improved decision making
Increased operational efficiency
Enhanced customer insights
All of the above
How much data does Walmart collect every hour?
1 petabyte
2.5 petabytes
5 petabytes
10 petabytes
One of the main benefits of using big data in a company is:
Improved decision making
Increased costs
Reduced data security
Decreased efficiency
If organizations want to use big data effectively to achieve their goals, they must know about its main characteristics. What is one of these characteristics?
Volume
Color
Shape
Texture
Which of the following is a characteristic of big data?
Speed
Volume
Simplicity
Clarity
What is the total quantity of data stored known as?
List some sources of data for businesses as mentioned in the passage.
Market research reports, customer feedback, and sales data
Social media trends, competitor analysis, and financial statements
Employee surveys, industry publications, and government statistics
All of the above
Data storage is less of a problem for companies now compared to the past because:
storage technology has not advanced.
data storage costs have increased.
cloud storage solutions are widely available.
companies store less data now.
