Practice Mongodb Multiple Choice Questions with Answers Quiz-1

Q.1.

What is MongoDB?

A file system.
A SQL database.
A NoSQL database.
An Access database.

Q.2.

How to create a database in mongodb?

create databaseName
new databaseName
use databaseName
None of the above

Q.3.

Which of the following is used to start server in MongoDB?

mongod
mongo
start-mongo
start-mongo.sh

Q.4.

Which of the following is not a NoSQL database ?

SQL
MONGODB
CASSANDRA
NONE

Q.5.

How many bits involve in _id?

9
10
11
12

Q.6.

What is the interactive shell for MongoDB called?

mongo
mongodb
dbmong
None

Q.7.

Which of the following format is supported by MongoDB ?

XML
BSON
SQL
All

Q.8.

Which of the following is not part of _id?

Timestamp
machineID
processID
counter
documentID

Q.9.

What name is given to Record in MongoDB?

Collections
Fields
Documents
Database

Q.10.

Which of the following will display details of sName "Sumit"?

db.Students.find({sName: "Sumit"})
db.Students.find({sName: "Sumit"},{"sName":1, "GPA":1, "_id":0})
db.Students.find({sName: "Sumit"},{"sName":1, "GPA":0})
db.Students.find({sName: Sumit})

Q.11.

In which format MongoDB represents document structure?

BSON
.txt
.Docx
None of these

Q.12.

A collection and a document in MongoDB is equivalent to............. concepts respectively.

Table and Column
Table and Row
Column and Row
Database and Table

Q.13.

Here are _________ types of read requests that a coordinator can send to a replica

3
2
4
1

Q.14.

What is the equivalent command in MongoDB for the following SQL query?SELECT * FROM posts WHERE author like "%john%"

db.posts.find( { author: /john/ } )
db.posts.find( { author: {$like: /john/} } )
db.posts.find( { $like: {author: /john/} } )
db.posts.find( { author: /^john^/ } )

Q.15.

NoSQL databases is used mainly for handling large volumes of ______________ data.

Unstructured
Structured
Semi-structured
All of the mentioned

Q.16.

Which one of the following is equivalent in MongoDB select* from employee order by salary desc;?

db.employee.find.sort({“salary”:1}]
db.employee.sort ({“salary”:-1}]
db.employee.find.sort ({“salary”:-1}
db.employee.sort({“salary”:1}]

Q.17.

CRUD operation in mognodb are______

create read update drop
create read update delete
create read update local
none

Q.18.

Point out the wrong statement :

Non Relational databases require that schemas be defined before you can add data
NoSQL databases are built to allow the insertion of data without a predefined schema
NewSQL databases are built to allow the insertion of data without a predefined schema
all

Q.19.

Which of the following is a NoSQL Database Type

MONGODB
JSON
CASSANDRA
A & C

Q.20.

MongoDB has been adopted as ________ software by a number of major websites and services

backend
frontend
both
none

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