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Welcome to the MongoDB CRUD Operations MCQs Page

Dive deep into the fascinating world of MongoDB CRUD Operations with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of MongoDB CRUD Operations, a crucial aspect of MongoDB. In this section, you will encounter a diverse range of MCQs that cover various aspects of MongoDB CRUD Operations, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within MongoDB.

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Check out the MCQs below to embark on an enriching journey through MongoDB CRUD Operations. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of MongoDB.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of MongoDB CRUD Operations. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

MongoDB CRUD Operations MCQs | Page 2 of 8

Explore more Topics under MongoDB

Q11.
When you query a collection, MongoDB returns a ________ object that contains the results of the query.

a.

row

b.

cursor

c.

colums

d.

none of the mentioned

Discuss
Answer: (b).cursor
Q12.
Point out the correct statement.

a.

A database is a set of key-value pairs

b.

A MongoDB deployment hosts a number of databases

c.

A document holds a set of collections

d.

All of the mentioned

Discuss
Answer: (b).A MongoDB deployment hosts a number of databases
Q13.
Which of the following method returns true if the cursor has documents?

a.

hasMethod()

b.

hasNext()

c.

hasDoc()

d.

all of the mentioned

Discuss
Answer: (b).hasNext()
Q14.
____________ method renders the document in a JSON-like format.

a.

displayjson

b.

print

c.

printjson

d.

printdoc

Discuss
Answer: (c).printjson
Q15.
Point out the wrong statement.

a.

Documents have static schema in MongoDB

b.

Eventually-consistent reads can be distributed over replicated servers

c.

Indexes can include keys from embedded documents and arrays

d.

None of the mentioned

Discuss
Answer: (a).Documents have static schema in MongoDB
Q16.
Which of the following method is called while accessing documents using the array index notation?

a.

cur.toArray()

b.

cursor.toArray()

c.

doc.toArray()

d.

all of the mentioned

Discuss
Answer: (b).cursor.toArray()
Q17.
The mongo shell and the drivers provide several cursor methods that call on the cursor returned by the _______ method to modify its behavior.

a.

cursor()

b.

find()

c.

findc()

d.

none of the mentioned

Discuss
Answer: (b).find()
Q18.
Which of the following method corresponds to Order by clause in SQL?

a.

sort()

b.

order()

c.

orderby()

d.

all of the mentioned

Discuss
Answer: (a).sort()
Q19.
The __________ method limits the number of documents in the result set.

a.

limit()

b.

limitOf()

c.

limitBy()

d.

none of the mentioned

Discuss
Answer: (a).limit()
Q20.
Which of the following line skips the first 5 documents in the bios collection and returns all remaining documents?

a.

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

b.

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

c.

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

d.

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

Discuss
Answer: (c).db.bios.find().skip( 5 )
Page 2 of 8

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