Table of Contents
Enroll Here: Big Data 101 Cognitive Class Exam Quiz Answers
Introduction to Big Data 101
Big Data refers to large and complex datasets that are difficult to process using traditional data management and processing techniques. The term encompasses not only the size of the data but also its variety (different types of data), velocity (speed at which data is generated and processed), and veracity (uncertainty of data).
The emergence of Big Data is primarily driven by the vast amounts of information generated by digital technologies such as social media, sensors, mobile devices, and other sources. These datasets are typically too large to be handled by traditional database systems or software tools, which were designed for smaller-scale data processing.
Key characteristics of Big Data include:
- Volume: The sheer amount of data generated every second is immense and continues to grow exponentially.
- Variety: Data comes in various forms including structured data (e.g., databases), semi-structured data (e.g., XML, JSON), and unstructured data (e.g., text, multimedia files).
- Velocity: Data is generated and needs to be processed at high speed. Real-time or near-real-time processing is often required to extract value from data streams.
- Veracity: Refers to the quality and reliability of the data. Big Data often includes data from unreliable or uncertain sources, requiring careful validation and cleansing.
To handle Big Data effectively, specialized tools and technologies have been developed, such as distributed computing frameworks like Hadoop and Spark, NoSQL databases, and data lakes. These technologies allow organizations to store, manage, and analyze large volumes of data to extract valuable insights, make data-driven decisions, and gain competitive advantages.
In summary, Big Data represents a paradigm shift in data management and analysis, driven by the exponential growth in data volume, variety, velocity, and the need to derive actionable insights from diverse and rapidly changing data sources.
Big Data 101 Cognitive Class Certification Answers
Module 1 – What is Big Data Quiz Answers
Question 1: Name one of the drivers of Volume in the Big Data Era?
- Scalable infrastructure
- Cost
- Competitive advantage
- FinTech
- Research and development
Question 2: Value from Big Data can be _______________?
- Profits
- Veracity
- Petabytes
- Technical ability
- Infrastructure
Question 3: In the video, 2.5 Quintillion Bytes of data are equivalent to how many blue ray DVDs?
- 1 Billion
- 10 million
- 100 million
- 5 million
- 1 Trillion
Module 2 – Big Data – Beyond the Hype Quiz Answers
Question 1: How many petabytes make up an Exabyte
- 32
- 2020
- 64
- 1024
- 8
Question 2: What is an example of a source of Semi-Structured Big data?
- Cameras files
- Relational databases
- Satellite files
- Spreadsheet file
- JSON files
Question 3: When is it estimated that the data we create and copy will reach around 35 zettabytes?
- We have already surpassed this mark
- 2050
- 2030
- 2040
- 2020
Module 3 – The Big Data and Data Science Quiz Answers
Question 1: What is the process of cleaning and analyzing data to derive insights and value from it?
- Machine Learning
- Exploratory Research
- Data Science
- Predictive Modeling
- Decision Trees
Question 2: What is the search engine used by Walmart?
- JSON
- HBase
- ZooKeeper
- Polaris
- Poisson
Question 3: An example of visualizing Big Data is___________?
- Hadoop
- Integration
- Agile Governance
- Temperature on a map
- Closing your eyes and imagining it
Module 4 – Big Data Use Cases Quiz Answers
Question 1: What is the term used to describe an holistic approach that takes into account all available and meaningful information about a customer to drive better engagement, revenue and long term loyalty?
- Enhanced 360-degree view
- Big Data Exploration
- End to End
- Operations Analysis
- Customer Retention
Question 2: What can help organizations to find new associations or uncover patterns and facts to significantly improve intelligence, security and law enforcement?
- Using local servers
- Analyzing data in-motion and at rest
- Satellite data
- GPS coordinates
- Using XML
Question 3: In Operations Analysis, we focus on what type of data?
- Location Data
- Machine Data
- Binary Data
- Social Media Data
- Structured Data
Module 5 – Processing Big Data Quiz Answers
Question 1: What is a method of storing data to support the analysis of originally disparate sources of data?
- Data Lakes
- Data Mining
- Predictive Analytics
- Data Analytics
- Deep Learning
Question 2: Data Warehouses provide online analytic processing: True/False
- False
- True
Question 3: What does ‘OLAP’ stand for?
- Online Analytical Prediction
- Online Analytical Platform
- Online Analytical Processing
- Online Advanced Prediction
- Online Advanced Programming
Big Data Final Exam Answers
Question 1: In Module 1: What is a common use of big data that is used by companies like Netflix, Spotify, Facebook and Amazon?
- Recommendation Engines
- Data Lakes
- Clusters
- The Cloud
- Sensors
Question 2: In Module 2: Is one byte binary? True/False
- False
- True
Question 3: In Module 2: What has highly contributed to the launch of the Big Data era?
- Clusters
- Spark
- Cloud Computing
- Zetabytes
- Data Scientists
Question 4: In Module 3: A data scientist is a person who is qualified to derive insights from data by using skills and experience from computer science, business or science, and statistics. True/False
- False
- True
Question 5: In Module 3: ‘HDFS’ stands for ____________________?
- Hadoop Data Fraud System
- High Data File System
- Hadoop Distributed File System
- High Distribution Frequency System
- High Definition Frequency Sensors
Question 6: In Module 3: Data privacy is a critical part of the big data era. Businesses and individuals must give great thought to how data is _____________________________.
- collected, retained, used, and disclosed
- bought, sold, stored and analyzed
- secured, sold, downloaded and uploaded
- aggregated, compiled, saved and stored
- stored, analyzed, read and written
Question 7: In Module 5: In the Hadoop framework, a rack is a collection of ____________?
- Yarn
- Networks
- Bits
- Nodes
- Distributed files
Question 8: In Module 5: What is a method of storing data to support the analysis of originally disparate sources of data?
- Spark
- Data Warehouse
- Yarn
- Data Repository
- Data Lake
Question 9: In Module 5: The Hadoop framework is mostly written in the Java programming language. True/False
- False
- True
Question 10: In Module 5: What is the term referring to a database that must be processed by means other than just the SQL Query Language.
- Spark
- NoSQL
- Python
- SQL
- Hadoop
