NoSQL eng

What are the different types of NoSQL databases?

• Document, Key-value, Wide-column, Graph

• Relational, Hierarchical, Network, Object-oriented

• SQL, NoSQL, NewSQL, OldSQL

• MySQL, PostgreSQL, SQLite, Oracle

What data types commonly used in NoSQL databases?

• boolean, string and number

• string, integer, float, decimal

• string, integer, float, boolean, array, and object

• array, and object

What is Firestore and how does it relate to NoSQL?

• Firestore is a NoSQL database that is designed to work well with JSON data.

• Firestore is a cloud storage service that has no relation to NoSQL.

• Firestore is a NoSQL database that is designed to work well with tabular data.

• Firestore is a SQL database that is designed to work well with XML data.

Differentiate between Firestore and Realtime Database in the Firebase platform.

• Realtime Database is more suitable for large-scale applications, while Firestore is better for small-scale projects.

• Firestore provides real-time synchronization and offline support, while Realtime Database allows for more complex querying and hierarchical data structures.

• Firestore and Realtime Database both have the same features and capabilities.

• Firestore allows for more complex querying and hierarchical data structures, while Realtime Database provides real-time synchronization and offline support.

What is MongoDB and how is it different from traditional SQL databases?

• MongoDB is a traditional SQL database with a fixed schema and limited scalability

• MongoDB is a programming language used for web development and is not related to databases at all

• MongoDB is a NoSQL database that stores data in a flexible, JSON-like format. It is different from traditional SQL databases in that it does not use a fixed schema and is designed for horizontal scalability.

• MongoDB is a type of data storage that only works with structured data and does not support JSON format

Explain the purpose of MongoDB Compass.

• To provide a platform for creating and managing SQL databases

• To offer a command-line interface for MongoDB

• To generate reports and analytics for NoSQL databases

• To provide a graphical user interface for MongoDB, allowing users to explore and manipulate data.

What are CRUD operations in MongoDB and how are they performed?

• Create, Read, Update, and Delete operations are performed using specific methods and commands provided by MongoDB.

• Create, Retrieve, Update, Destroy operations are performed using SQL commands

• Add, Search, Modify, Erase operations are performed using Firebase commands

• Copy, Remove, Update, Drop operations are performed using NoSQL methods

What are the advantages of using NoSQL databases over traditional SQL databases?

• NoSQL databases have no advantages over traditional SQL databases.

• NoSQL databases offer advantages such as scalability, flexibility, and better performance for certain types of applications.

• NoSQL databases are not suitable for any type of application.

• NoSQL databases offer disadvantages such as limited scalability, inflexibility, and worse performance for certain types of applications.

How does Firebase handle real-time data updates?

• By sending SMS updates

• Through websockets

• Using carrier pigeons

• Through email notifications

Wich method is for writing data into mongoDB?

• insertOne()

• setDoc()

• addDoc()

• postOne()