The video tutorial explains the differences between SQL and NoSQL databases. SQL follows a relational model with tables, rows, and columns, and has been around since 1970. Examples include MySQL and Microsoft SQL Server. NoSQL, emerging in the late 2000s, offers flexible data storage formats like documents, key-value pairs, and graphs, with MongoDB as a key example. The video compares the rigid structure of SQL with the flexible nature of NoSQL, highlighting their respective use cases and features.

What is the primary model that SQL databases follow?

• Relational model

• Graph model

• Document-based model

• Key-value model

Which of the following is an example of a NoSQL database?

• MySQL

• Oracle

• Microsoft SQL Server

• MongoDB

How does MongoDB store data differently from SQL databases?

• In a graph-based format

• In a document-based format

• In a spreadsheet format

• In tables with rows and columns

What does ACID stand for in the context of database transactions?

• Atomicity, Consistency, Isolation, Durability

• Accuracy, Consistency, Integrity, Durability

• Accuracy, Clarity, Integrity, Durability

• Atomicity, Clarity, Isolation, Durability

Which type of database is generally more flexible in terms of data storage?

• Neither is flexible

• Both are equally flexible

• NoSQL

• SQL