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MongoDB C100DBA Exam With Confidence Using Practice Dumps

Exam Code:
C100DBA
Exam Name:
MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4)
Vendor:
Questions:
132
Last Updated:
Mar 3, 2025
Exam Status:
Stable
MongoDB C100DBA

C100DBA: MongoDB Certified DBA Associate Exam 2025 Study Guide Pdf and Test Engine

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MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) Questions and Answers

Question 1

Consider that the posts collection contains an array called ratings which contains ratings given to the post by various users in the following format:

Which of the following query will return all the documents where the ratings array contains elements that in some combination satisfy the query conditions?

Options:

A.

db.inventory.find( { ratings: { $elemMatch: { $gte: 3, $lte: 6 } } } )

B.

db.inventory.find( { ratings: { $elemMatch: { $gt: 3, $lt: 6 }

C.

db.inventory.find( { ratings: { ratings.$: { $gt: 5, $lt: 9 } } } )

D.

db.inventory.find( { ratings: { ratings: { $gt: 5, $lt: 9 } } } )

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Question 2

Below is a sample document in a given collection test.

{ a : 5, b : 3, c: 2, d : 1 >

Given a compound index { a: 1, b:l, c:l, d:l}, Which of the below query will not use in-memory sorting? Select

all valid.

Options:

A.

db.test.find( { a: 5, b: 3 } ).sort( { c: 1, d : 1 } )

B.

db.test.find( { a: 5, b: 3 } ).sort( { a: 1} )

C.

db.test.find( { a: 5, b: 3 } ).sort( { a: 1, b: 1, c: 1 > )

D.

db.test.find( { a: 5, b: 3 } ).sort( {c: 1 } )

Question 3

Which of the following command inside aggregate command is used in MongoDB aggregation to filter the documents to pass only the documents that match the specified condition(s) to the next pipeline stage.

Options:

A.

$aggregate

B.

$sum

C.

$match

D.

$group