Introduction to Databases (SQL vs. NoSQL)

1. : What is the main purpose of a database?
(A) To design websites
(B) To store, organize, and manage data efficiently
(C) To speed up internet browsing
(D) To edit documents

2. : Which of the following is an example of an SQL database?
(A) MongoDB
(B) Firebase
(C) MySQL
(D) Cassandra

3. : SQL databases are also known as:
(A) Relational Databases
(B) Non-Relational Databases
(C) Hierarchical Databases
(D) File-based Databases

4. : NoSQL databases are best suited for:
(A) Highly structured data only
(B) Large volumes of unstructured or semi-structured data
(C) Small text files only
(D) Relational data with strict schemas

5. : Which language is used to query SQL databases?
(A) HTML
(B) JavaScript
(C) SQL (Structured Query Language)
(D) Python

6. : Which of the following is NOT an SQL database?
(A) PostgreSQL
(B) Oracle
(C) SQLite
(D) MongoDB

7. : Which feature is a strength of NoSQL databases?
(A) Fixed schema
(B) Horizontal scalability
(C) Strict table relationships
(D) Only supports small datasets

8. : Which of the following is true about SQL databases?
(A) They use tables with rows and columns
(B) They store data as JSON documents
(C) They have no schema
(D) They are always faster than NoSQL

9. : MongoDB stores data in which format?
(A) Rows and columns
(B) Key-Value pairs
(C) JSON-like documents
(D) CSV files

10. : Which type of database is better for complex queries and transactions?
(A) SQL Databases
(B) NoSQL Databases
(C) Both equally
(D) None