Big Data and Relational Databases Quiz

What is Big Data?

• A large collection of digital and non-digital books

• Large amounts of structured and unstructured data collected and processed for insights

• A type of software for creating databases

• A storage system for small files

Which of the following is an example of Big Data?

• A personal grocery list

• Social media posts and user activity records

• A single Excel sheet with 10 rows

• A single customer’s contact information

Which of the following is an application of Big Data?

• Predicting customer preferences in online shopping

• Making paper invoices

• Storing one student's grades in a notebook

• Sending text messages

In which industry is Big Data used for fraud detection?

• Agriculture

• Banking and Finance

• Fashion

• Music Industry

Which of the following is NOT a characteristic of Big Data?

• Variety

• Veracity

• Visibility

• Reliability

What does ‘Variety’ in Big Data mean?

• The accuracy of data

• The different types of data (text, images, videos, etc.)

• The reliability of the source

• The small amount of data collected

What does ‘Veracity’ in Big Data refer to?

• The speed of data processing

• The accuracy and trustworthiness of data

• The number of records in a database

• The type of database being used

Why is the reliability of Big Data important?

• It ensures the data is accurate and can be trusted for decision-making

• It allows companies to delete all stored data

• It makes data smaller in size

• It replaces relational databases

What is a relational database?

• A database that stores data in related tables

• A single list of names and numbers

• A type of software for editing images

• A tool for playing video files

Which of the following best describes a table in a relational database?

• A place to store physical files

• A collection of related records organized in rows and columns

• A single large file that cannot be modified

• A simple notepad document