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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