MongoDB Basic Shell Commands: Beginner-Level Quiz

MongoDB Basic Shell Commands Quiz

This quiz assesses your understanding of fundamental MongoDB shell commands essential for interacting with MongoDB databases. It covers switching databases, inserting and retrieving documents, managing collections, and performing basic administrative tasks using the Mongo shell. Mastery of these commands is crucial for efficient database management and development workflows. Good luck!

1 / 20

Which command is used to create an index on a field?

db.collection.createIndex({ : 1 })

createIndex()

indexField()

addIndex()

2 / 20

What will happen if you try to insert a document without specifying the _id field?

It will use the value of the first field as _id

MongoDB will automatically generate a unique _id value

The collection will throw an error

The document will not be inserted

3 / 20

Which command is used to insert a document into a collection?

db.collection.insertOne()

db.collection.add()

db.insert()

insert into

4 / 20

How do you see the role assignments for a particular user in MongoDB?

db.getUser("")

db.getRoles()

db.userRoles("")

show roles

5 / 20

How do you rename an existing collection in the Mongo shell?

db.collection.renameCollection("newName")

rename

db.renameCollection()

db.collection.changeName()

6 / 20

What does the command db.dropDatabase() do?

Deletes the currently selected database

Renames the current database

Creates a backup of the current database

Deletes all documents from a collection

7 / 20

The Mongo shell db refers to the currently selected database. True or False?

True

False

8 / 20

The db.collection.insertMany() command can be used to insert multiple documents at once. True or False?

True

False

9 / 20

What is the function of db.collection.find()?

Updates all documents

Creates a collection

Deletes a collection

Retrieves documents from a collection

10 / 20

Which command lists all active users and their roles in the database?

db.userList()

db.getUsers()

db.getRoles()

show users

11 / 20

Which command shows all collections in the current database?

get collections

db.listCollections()

show collections

display tables

12 / 20

Which command counts the number of documents in a collection?

db.count()

db.collection.getCount()

db.collection.countDocuments()

db.collection.total()

13 / 20

The exit command closes the Mongo shell. True or False?

True

False

14 / 20

Which command is used to display all the databases in the Mongo shell?

db.getDbs()

list databases

show collections

show dbs

15 / 20

What is the function of the db.version() command?

Shows database logs

Returns the version of the current collection

Lists previous queries executed

Displays the version of MongoDB

16 / 20

What is the default command to switch to a specific database in the Mongo shell?

db.switch()

use_database()

select

use

17 / 20

Which command shows the structure of a document in a collection?

db.collection.findOne()

show structure

db.collection.getSchema()

db.collection.displaySchema()

18 / 20

What does the command it do in the Mongo shell?

Terminates the Mongo shell session

Creates a new index

Retrieves the next batch of results from the cursor

Iterates over all databases

19 / 20

Which command drops a specific collection from a database?

db.collection.drop()

drop

db.dropCollection()

db.deleteCollection()

20 / 20

Which command enables verbose logging for a query?

set logging level high

db.enableVerbose()

db.log(2)

db.setLogLevel(2)

Your score is

The average score is 0%

MongoDB Basic Shell Commands covers fundamental commands and operations used to interact with a MongoDB database through the MongoDB shell.

It includes commands for performing CRUD (Create, Read, Update, Delete) operations, managing collections, and querying data.

This quiz is essential for users who must test their ability to perform basic database tasks and navigate MongoDB’s shell environment.

All the best!