mongo db

What is a NoSQL database?

• A type of database that provides a mechanism for storage and retrieval of data that is modeled in means other than the tabular relations used in relational databases.

• A type of database that can only be accessed by a single user at a time

• A type of database that is only used for storing images and videos

• A type of database that only stores data in tabular format

Why is NoSQL database important in modern computing?

• NoSQL databases have limited scalability

• NoSQL databases cannot handle large volumes of data

• NoSQL databases can handle large volumes of unstructured data, provide high scalability, and offer flexible data models.

• NoSQL databases are slow and inefficient

How do you set up MongoDB environment?

• Install MongoDB, configure the database server, and start the MongoDB service.

• Uninstall MongoDB and reinstall it

• Start the MongoDB service before installing MongoDB

• Ignore MongoDB and use a different database system

What are the basic steps to create and manage databases in MongoDB?

• Creating a database, creating tables, and updating data

• Inserting data, deleting collections, and managing the database using SQL commands

• Querying data, creating indexes, and dropping the database

• Creating a database, creating collections, inserting and querying data, and managing the database using commands like create, drop, and update.

What is a collection in MongoDB?

• A programming language used in MongoDB

• A group of MongoDB documents

• A type of index in MongoDB

• A type of data structure in SQL databases

How do you work with collections in MongoDB?

• You can use commands like db.collectionName.find(), db.collectionName.insertOne(), and db.collectionName.updateOne()

• You can use commands like db.collectionName.modify() and db.collectionName.save()

• You can use commands like db.collectionName.select() and db.collectionName.insertAll()

• You can use commands like db.collectionName.deleteMany() and db.collectionName.drop()

How do you query data in MongoDB?

• Using the delete() method

• Using the find() method or the findOne() method

• Using the update() method

• Using the insert() method

How can you update data in MongoDB?

• Using the delete() method

• Using the insert() method

• Using the find() method

• Using the update() method or the updateOne() method