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

Which of the following line skips the first 5 documents in the bios collection and returns all remaining documents?

db.bios.find().skip( 1 )

db.bios.find().sort( 5 )

db.bios.find().limit( 5 )

db.bios.find().skip( 5 )

2 / 20

Which of the following statements is correct?

MMS is available to all users in the cloud and on-premises as part of MongoDB Standard and Enterprise SubscriptionsMMS is available to all users in the cloud and on-premises as part of MongoDB Standard and Enterprise Subscriptions

MongoDB can also be configured for data replication

MMS provides backup and monitoring

All of the above

3 / 20

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

use mydb

use mydbs

use dbs

use db

4 / 20

__________ is a part of the standard MongoDB distribution and provides a full JavaScript environment.

mongo

mongod

mongodb

none of the mentioned

5 / 20

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

printdoc

displayjson

printjson

6 / 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

7 / 20

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

cursor

row

colums

none of the mentioned

8 / 20

___________ command display the list of databases.

Show data

Show db

Show dbs

Display dbs

9 / 20

A query may include a ___________ that specifies the fields from the matching documents to return.

projection

union

selection

none of the mentioned

10 / 20

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

hasNext()

hasMethod()

hasDoc()

all of the mentioned

11 / 20

Which of the following statements is correct?

A document holds a set of collections

A database is a set of key-value pairs

A MongoDB deployment hosts a number of databases

All of the mentioned

12 / 20

Which of the following method is called while accessing documents using the array index notation?

cursor.toArray()

doc.toArray()

cur.toArray()

all of the mentioned

13 / 20

Which of the following statements is not correct?

MongoDB works hard to be very easy to install, configure, maintain, and use

MongoDB does not provide a lot of the features of a traditional RDBMS

MongoDB works right out of the box, and you can dive right into developing your application, instead of spending a lot of time fine-tuning obscure database configurations

None of the above

14 / 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

15 / 20

The __________ method limits the number of documents in the result set.

limitOf()

limit()

limitBy()

none of the mentioned

16 / 20

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

cursor

none of the mentioned

17 / 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

18 / 20

Which of the following also returns a list of databases?

display dbs

show database

show databases

all of the mentioned

19 / 20

Command to check the existence of collection is _____________.

show collect

show collection

show collections

none of the mentioned

20 / 20

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

primary

master

mongo

test

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.