MongoDB Skills Test: Trivia Quiz

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| By Cripstwick

Cripstwick

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Quizzes Created: 636 | Total Attempts: 733,305

Questions: 10 | Attempts: 1,078 | Updated: Mar 21, 2023

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The MongoDB Skills Test: This cross-platform document-oriented database program is ideal for businesses in which data structures change over time. MongoDB was created in the 2000s and is considered the leading NoSQL database used by many corporations worldwide. In this quiz, you will get to test out just how much you know about this database and its application and importance to those who use it. Do give it a try!

Questions and Answers

1.

MongoDB is a__ type of database.
- A.
  
  SQL database
- B.
  
  NoSQL database
- C.
  
  Column database
- D.
  
  Row database
Correct Answer
B. NoSQL database

Explanation
MongoDB is classified as a NoSQL database because it does not use the traditional SQL language for querying and manipulating data. Instead, it uses a flexible, document-oriented approach where data is stored in JSON-like documents. NoSQL databases are known for their ability to handle large amounts of unstructured or semi-structured data, making them suitable for modern applications that require scalability and flexibility.

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2.

When was MongoDB first developed?
- A.
  
  2005
- B.
  
  2007
- C.
  
  2009
- D.
  
  2011
Correct Answer
B. 2007

Explanation
MongoDB was first developed in 2007.

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3.

Which of these popular websites uses MongoDB as a backend?
- A.
  
  Amazon
- B.
  
  Ebay
- C.
  
  Aliexpress
- D.
  
  Yahoo
Correct Answer
B. Ebay

Explanation
Ebay uses MongoDB as a backend.

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4.

Which of these is not a feature of MongoDB?
- A.
  
  Extraction
- B.
  
  Indexing
- C.
  
  Replication
- D.
  
  Aggregation
Correct Answer
A. Extraction

Explanation
Extraction is not a feature of MongoDB. MongoDB is a NoSQL database that offers features like indexing, replication, and aggregation. Indexing allows for efficient querying and searching of data, replication ensures data redundancy and high availability, and aggregation allows for complex data analysis and processing. However, extraction, which typically refers to the process of retrieving specific data from a database, is not mentioned as a feature of MongoDB.

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5.

How many fields in a BSON can be indexed in MongoDB?
- A.
  
  2
- B.
  
  3
- C.
  
  4
- D.
  
  All
Correct Answer
D. All

Explanation
All fields in a BSON can be indexed in MongoDB. This means that any field within a BSON document can be indexed to improve query performance. By indexing all fields, MongoDB allows for efficient searching and sorting operations on any field in the document. This flexibility in indexing is a key feature of MongoDB that enables developers to optimize their database queries based on their specific application requirements.

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6.

What type of document storage does MongoDB make use of?
- A.
  
  DOCX
- B.
  
  JSON
- C.
  
  BSON
- D.
  
  JQUERY
Correct Answer
C. BSON

Explanation
MongoDB makes use of BSON (Binary JSON) as its document storage format. BSON is a binary representation of JSON-like documents, providing a more efficient and compact way to store and retrieve data. It includes additional data types compared to JSON, such as Date and Binary, and supports indexing and querying for efficient data retrieval. BSON is used by MongoDB to store and manipulate data, making it a suitable choice for handling large amounts of structured and unstructured data.

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7.

Who were the developers of MongoDB?
- A.
  
  Dwight and Merriman
- B.
  
  Merrimack and Jason
- C.
  
  Sandra and Jason
- D.
  
  Merriman and Zuckerberg
Correct Answer
A. Dwight and Merriman

Explanation
Dwight and Merriman were the developers of MongoDB.

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8.

What language is used in writing MongoDB?
- A.
  
  C++ , C and Java
- B.
  
  C, Java and PHP
- C.
  
  Python, Java and HTML
- D.
  
  C++ , C and JavaScript
Correct Answer
D. C++ , C and JavaScript

Explanation
MongoDB is written primarily in C++ and C, which are low-level programming languages known for their efficiency and performance. However, MongoDB also uses JavaScript as its query language, allowing users to interact with the database using JavaScript syntax. This combination of languages allows MongoDB to leverage the power and speed of C++ and C for its core functionality, while also providing a user-friendly interface through JavaScript.

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9.

The MongoDB Inc hosts an annual developer conference called__
- A.
  
  MongoDB developers conference
- B.
  
  MongoDBs
- C.
  
  MongoDB world
- D.
  
  MongoDB conference
Correct Answer
C. MongoDB world

Explanation
The correct answer is "MongoDB world" because it is stated in the question that MongoDB Inc hosts an annual developer conference, and the most likely name for this conference would be "MongoDB world."

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10.

MongoDB is made available for free using the__
- A.
  
  Public Domain License
- B.
  
  GNU Affero General Public License
- C.
  
  Permissive Software License
- D.
  
  Copyleft Software License
Correct Answer
B. GNU Affero General Public License

Explanation
MongoDB is made available for free using the GNU Affero General Public License. This license is a copyleft license that requires any modifications or derivatives of the software to also be released under the same license. This ensures that the software remains open source and freely available to the community.

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