MongoDB CRUD Operation: Beginner-Level Quiz

MongoDB CRUD Operations

This quiz evaluates your understanding of MongoDB’s core CRUD operations—Create, Read, Update, and Delete. Mastery of these operations is essential for working with MongoDB databases, ensuring efficient data management and manipulation. Good luck!

1 / 20

___________ command display the list of databases.

Show data

Show db

Show dbs

Display dbs

2 / 20

In MongoDB _________ operations modify the data of a single collection.

GRID

READ

CRUD

All of the mentioned

3 / 20

After starting the mongo shell, your session will use the ________ database by default.

primary

master

mongo

test

4 / 20

Mongo looks for a database server listening on port 27017 on the ________ interface.

web

web host

localhost

all of the mentioned

5 / 20

____________ method renders the document in a JSON-like format.

printdoc

displayjson

printjson

6 / 20

When you query a collection, MongoDB returns a ________ object that contains the results of the query.

cursor

row

colums

none of the mentioned

7 / 20

Which of the following keys is used to denote uniqueness in the collection?

_id

id_

none of the mentioned

8 / 20

Command to check the existence of collection is _____________.

show collect

show collection

show collections

none of the mentioned

9 / 20

Which of the following operation is used to switch to new database mydb?

use mydb

use mydbs

use dbs

use db

10 / 20

Which of the following also returns a list of databases?

display dbs

show database

show databases

all of the mentioned

11 / 20

The mongo shell and the drivers provide several cursor methods that call on the cursor returned by the _______ method to modify its behavior.

cursor()

findc()

find()

none of the mentioned

12 / 20

Which of the following methods is used to query documents in collections?

shell

replace

move

find

13 / 20

Which of the following statements is correct?

Collections do not enforce a schema

Collection is a group of MongoDB documents

MongoDB is an open-source document database, and leading NoSQL database

None of the above

14 / 20

Which of the following method returns a cursor?

sort

find

skip

all of the mentioned

15 / 20

The mongo shell loads and parses the ___________ file on startup.

mongorc.js

mongo.js

mongoc.js

all of the mentioned

16 / 20

Which of the following statement will insert 400 documents in to the testData collection?

insertData("test", "testData", 200)

insertData("test", "testData", 600)

insertData("test", "testData", 400)

None of the above

17 / 20

Which of the following statements is wrong?

Documents have static schema in MongoDB

Indexes can include keys from embedded documents and arrays

Eventually-consistent reads can be distributed over replicated servers

None of the mentioned

18 / 20

Which of the following method returns true if the cursor has documents?

hasNext()

hasMethod()

hasDoc()

all of the mentioned

19 / 20

Which of the following statements is not correct?

A single MongoDB server typically has single databases

Collection is the equivalent of an RDBMS table

Database is a physical container for collections

All of the above

20 / 20

To iterate the cursor and return more documents, type _________ in the Mongo shell.

cursor

none of the mentioned

Your score is

The average score is 0%

MongoDB CRUD Operation uses MongoDB’s syntax and commands to perform operations effectively. This includes but is not limited to the use of filters, updates, and delete criteria for data manipulation.

This quiz is designed for beginners and developers who are new to MongoDB and wish to test their knowledge.

Good luck.