Free MongoDB C100DEV Exam Questions

Become MongoDB Certified with updated C100DEV exam questions and correct answers

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Total 411 Questions | Updated On: Mar 19, 2026
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Question 1

In a MongoDB collection named orders, you are tasked with retrieving a subset of documents that fulfill specific criteria. Each document in this collection contains the following fields: customerId, orderId, orderDate, and orderDetails (an embedded document with fields: product, quantity, unitPrice). You are required to fetch all orders made by the customer with a customerId of 1234 on a specific date 2023-04-12, and only return the orderId, orderDate, and product from orderDetails. Which of the following MongoDB queries would accurately fulfill these requirements?


Answer: A
Question 2

When sharding a MongoDB collection, what is the main factor that determines the distribution of data across shards?


Answer: D
Question 3

Which of the following statements correctly describes the relationship between BSON and JSON in MongoDB?


Answer: C
Question 4

Which of the following scenarios is best suited for applying the Attribute Pattern?


Answer: D
Question 5

Given the following documents in a collection:
{ _id: 1, n: [1,2,5], p: 0.75, c: 'Green' },
{ _id: 2, n: 'Orange', p: 'Blue', c: 42, q: 14 },
{ _id: 3, n: [1,3,7], p: 0.85, c: 'Orange' }
Which two documents can successfully be added in the same collection? (Select two)


Answer: C,D
Page:    1 / 83      
Total 411 Questions | Updated On: Mar 19, 2026
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