MongoDB MCQ Questions And Answers

This section focuses on "Basics" in MongoDB. These Multiple Choice Questions (MCQ) should be practiced to improve the MongoDB skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations.

1. Which of the following is not a feature for NoSQL databases?

A. Data can be easily held across multiple servers
B. Relational Data
C. Scalability
D. Faster data access than SQL databases

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2. Which of the following statement is correct with respect to mongoDB?

A. MongoDB is a NoSQL Database
B. MongoDB used XML over JSON for data exchange
C. MongoDB is not scalable
D. All of the above

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3. Which of the following is/are feature of mongoDB?

A. Vertically scalable
B. Centralised database
C. c
D. All of the above

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4. Which of the following represent column in mongoDB?

A. document
B. database
C. collection
D. field

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5. The system generated _id field is?

A. A 12 byte hexadecimal value
B. A 16 byte octal value
C. A 12 byte decimal value
D. A 10 bytes binary value

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6. Which of the following true about mongoDB?

A. MongoDB is a cross-platform
B. MongoDB is a document oriented database
C. MongoDB provides high performance
D. All of the above

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7. Collection is a group of MongoDB ___________?

A. Database
B. Document
C. Field
D. None of the above

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8. A developer want to develop a database for LFC system where the data stored is mostly in similar manner. Which database should use?

A. Relational
B. NoSQL
C. Both A and B can be used
D. None of the above

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9. Documents in the same collection do not need to have the same set of fields or structure, and common fields in a collection's documents may hold different types of data is known as ?

A. dynamic schema
B. mongod
C. mongo
D. Embedded Documents

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10. Instead of Primary Key mongoDB use?

A. Embedded Documents
B. Default key _id
C. mongod
D. mongo

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