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

How do you update a single document in a MongoDB collection?

db.collection.modify()

db.collection.updateOne()

db.collection.setOne()

update

2 / 20

Which command shows all collections in the current database?

get collections

db.listCollections()

show collections

display tables

3 / 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

4 / 20

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

db.collection.insertOne()

db.collection.add()

db.insert()

insert into

5 / 20

You can use the Mongo shell to execute JavaScript code along with database commands. True or False?

True

False

6 / 20

Which command is used to display the current database name?

db.name()

current_db()

show db

7 / 20

Which command counts the number of documents in a collection?

db.count()

db.collection.getCount()

db.collection.countDocuments()

db.collection.total()

8 / 20

Which operator is used in the Mongo shell to delete a single document from a collection?

db.collection.dropDocument()

db.collection.deleteOne()

delete

db.collection.remove()

9 / 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

10 / 20

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

db.collection.createIndex({ : 1 })

createIndex()

indexField()

addIndex()

11 / 20

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

db.getDbs()

list databases

show collections

show dbs

12 / 20

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

Updates all documents

Creates a collection

Deletes a collection

Retrieves documents from a collection

13 / 20

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

db.collection.findOne()

show structure

db.collection.getSchema()

db.collection.displaySchema()

14 / 20

Which command enables verbose logging for a query?

set logging level high

db.enableVerbose()

db.log(2)

db.setLogLevel(2)

15 / 20

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

db.switch()

use_database()

select

use

16 / 20

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

db.collection.renameCollection("newName")

rename

db.renameCollection()

db.collection.changeName()

17 / 20

How do you remove all documents from a collection?

db.collection.truncate()

delete * from

db.collection.deleteMany({})

db.collection.removeAll()

18 / 20

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

db.getUser("")

db.getRoles()

db.userRoles("")

show roles

19 / 20

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

True

False

20 / 20

Which command lists all indexes of a collection?

show indexes

db.collection.getIndexes()

db.collection.listAll()

db.collection.showIndexes()

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!