Big Data Introduction: Definition and Overview

Question 1

Which characteristic is a defining feature of big data?

Accepted Answer

High velocity in generation and processing

Answer

Relatively small volume

Answer

Exclusively structured format

Answer

Consistently limited variety of data types

Question 2

Which of the following is NOT a defining characteristic of big data?

Accepted Answer

Complexity

Answer

Volume

Answer

Variety

Answer

Velocity

Question 3

What is the term for the process of cleaning and preparing big data for analysis?

Accepted Answer

Data wrangling

Answer

Data mining

Answer

Data visualization

Answer

Data integration

Question 4

What is the name of the framework that provides a unified view of data from multiple sources?

Accepted Answer

Data lake

Answer

Data warehouse

Answer

Data mart

Answer

Data cube

Question 5

Which characteristic is NOT typically associated with big data?

Accepted Answer

Accuracy

Answer

Volume

Answer

Velocity

Answer

Variety

Question 6

Which characteristic is not associated with big data?

Accepted Answer

Durability

Answer

Volume

Answer

Velocity

Answer

Variety

Question 7

What is the primary objective of big data analytics?

Accepted Answer

To uncover meaningful insights from large datasets

Answer

To store and manage vast amounts of data

Answer

To visualize data in an interactive and user-friendly manner

Answer

To develop machine learning models for predictive analysis

Question 8

What is the term for the process of transforming big data into a structured and organized format?

Accepted Answer

Data wrangling

Answer

Data mining

Answer

Statistical analysis

Answer

Machine learning

Question 9

What is the primary objective of data exploration in the context of big data analytics?

Accepted Answer

Identifying patterns and trends

Answer

Cleansing and preparing data for subsequent analysis

Answer

Creating predictive models

Answer

Visualizing data for presentation purposes

Question 10

What is the key distinction between structured and unstructured data in big data?

Accepted Answer

Structured data conforms to a predefined schema, while unstructured data does not.

Answer

Structured data is inherently easier to process compared to unstructured data.

Answer

Unstructured data is more valuable than structured data.

Answer

There is no distinction between structured and unstructured data.

Question 11

Which attribute is NOT considered a core characteristic of big data?

Accepted Answer

Accessibility

Answer

Volume

Answer

Velocity

Answer

Variety

Question 12

What is the primary objective of big data analytics?

Accepted Answer

Uncover hidden insights and patterns

Answer

Minimize data storage expenses

Answer

Enhance data security

Answer

Accelerate data processing

Question 13

Which of the following is a widely used tool for processing big data?

Accepted Answer

Hadoop

Answer

Microsoft SQL Server

Answer

MySQL

Answer

Oracle Database

Question 14

Which ethical consideration is of particular relevance to big data analytics?

Accepted Answer

Data privacy

Answer

Intellectual property rights

Answer

Environmental sustainability

Answer

Data ownership

Question 15

What is the primary challenge encountered in data preprocessing for big data analytics?

Accepted Answer

Data cleaning and noise removal

Answer

Data integration and transformation

Answer

Data reduction and compression

Answer

Data encryption and security

Question 16

Which algorithm is commonly used for dimensionality reduction in big data?

Accepted Answer

Principal Component Analysis (PCA)

Answer

Linear Regression

Answer

Decision Tree

Answer

Support Vector Machine

Question 17

What is the fundamental difference between supervised and unsupervised learning in big data analytics?

Accepted Answer

Labeled vs. unlabeled data

Answer

Regression vs. classification

Answer

Online vs. offline learning

Answer

Static vs. dynamic data

Question 18

Which of the following is a defining characteristic of big data?

Accepted Answer

High volume

Answer

Low velocity

Answer

Centralized storage

Answer

Limited variety

Question 19

What is a common source of big data in the healthcare industry?

Accepted Answer

Patient medical records

Answer

Social media posts

Answer

Financial transaction data

Answer

Government census data

Question 20

What is the distinction between 'volume' and 'velocity' in the context of big data?

Accepted Answer

Volume refers to data size, while velocity refers to rate of data creation.

Answer

Volume refers to rate of data creation, while velocity refers to data size.

Answer

Both volume and velocity measure the same aspect of big data.

Answer

Neither volume nor velocity are relevant characteristics of big data.

Question 21

What is the term used to describe the process of transforming unstructured data into a structured format for analysis?

Accepted Answer

Data wrangling

Answer

Data cleaning

Answer

Data mining

Answer

Data visualization

Question 22

Which of the following tools is widely used for processing and analyzing large datasets?

Accepted Answer

Hadoop

Answer

SQL

Answer

TensorFlow

Answer

Microsoft Excel

Question 23

Which of the following is NOT a key defining characteristic of big data?

Accepted Answer

Accuracy

Answer

Volume

Answer

Velocity

Answer

Variety

Question 24

What term describes the speed at which big data is generated and processed?

Accepted Answer

Velocity

Answer

Volume

Answer

Variety

Answer

Value

Question 25

What term describes structured data that is organized in rows and columns?

Accepted Answer

Relational data

Answer

Unstructured data

Answer

Semi-structured data

Answer

Big data

Question 26

What is an ethical consideration that arises when dealing with sensitive big data?

Accepted Answer

Data privacy

Answer

Data security

Answer

Data bias

Answer

Data integrity

Question 27

What is the emerging field that combines big data with machine learning and artificial intelligence?

Accepted Answer

Data science

Answer

Deep learning

Answer

Predictive analytics

Answer

Big data engineering

Question 28

Within the context of healthcare, which source is commonly associated with big data generation?

Accepted Answer

Electronic health records

Answer

Online health forums

Answer

Fitness tracker data

Answer

Patient satisfaction surveys

Question 29

Which application of big data aids in predicting customer behavior?

Accepted Answer

Personalized marketing

Answer

Fraud detection

Answer

Supply chain management

Answer

Risk assessment

Question 30

In the context of big data management, what is the prominent challenge associated with handling immense data volumes?

Accepted Answer

Storage limitations

Answer

Processing delays

Answer

Data privacy concerns

Answer

Data visualization constraints

Question 31

Which term describes the rate at which data is generated or accessed?

Accepted Answer

Velocity

Answer

Variety

Answer

Veracity

Answer

Volume

Question 32

What is the primary distinction between structured and unstructured data?

Accepted Answer

Structured data is organized in a tabular format, while unstructured data is not.

Answer

Unstructured data is machine-readable, while structured data is not.

Answer

Structured data can be directly analyzed, while unstructured data requires preprocessing.

Answer

Unstructured data is typically found in databases, while structured data is not.

Question 33

Which term describes the process of deriving meaningful insights from big data?

Accepted Answer

Big data analytics

Answer

Big data visualization

Answer

Big data mining

Answer

Data wrangling

Question 34

Which of the following is NOT a defining characteristic of big data?

Accepted Answer

Small volume

Answer

Wide variety

Answer

Real-time generation

Answer

High veracity

Question 35

Which of the following is a potential application of big data in the healthcare industry?

Accepted Answer

Personalized treatment plans

Answer

Inventory management

Answer

Financial forecasting

Question 36

What is the term for the process of extracting valuable insights from big data?

Accepted Answer

Big data analytics

Answer

Data profiling

Answer

Machine learning

Answer

Data visualization

Question 37

What is the term for a specialized software framework designed to handle the processing and analysis of big data?

Accepted Answer

Big data platform

Answer

Cloud computing service

Answer

Data analytics tool

Answer

Machine learning algorithm