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MongoDB Updated C100DBA Exam Questions and Answers by thiago

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MongoDB C100DBA Exam Overview :

Exam Name: MongoDB Associate Database Administrator(Based on MongoDB 6.0 and 7.0+)
Exam Code: C100DBA Dumps
Vendor: MongoDB Certification: MongoDB Certified DBA Associate
Questions: 172 Q&A's Shared By: thiago
Question 8

Consider the following posts document:

Questions 8

Which of the following queries will return the documents but with only the first two tags in the tags array?

Options:

A.

db.posts.find({author: " Tom " ».limit({tags:2})

B.

db.posts.find({author: " Tom " ».limit($slice:{tags:2 > )

C.

Both " db.posts.find({author: " Tom " },{tags:{$slice:2}}) " and " db.posts.find({author: " Tom " }).limit($slice: {tags:2}) " are valid. $slice works both with projection and limit.

D.

db.posts.find({author: " Tom " > ,{tags:{$slice:2»)

Discussion
Question 9

The following aggregation option is used to specify the specific fields that needs to be passed to the next stage of the aggregation pipeline:

Options:

A.

$project

B.

$aggregate

C.

$match

D.

$group

Discussion
Question 10

A collection and a document in MongoDB is equivalent to which of the SQL concepts respectively?

Options:

A.

Column and Row

B.

Table and Row

C.

Database and Table

D.

Table and Column

Discussion
Question 11

Consider that our posts collection contains an array field called tags that contains tags that the user enters. {

Questions 11

Which of the following commands will find all the posts that have been tagged as tutorial.

Options:

A.

db.posts.find( { tags : [ " tutorial " ] } );

B.

db.posts.find( { $array : {tags: " tutorial " ) > );

C.

db.posts.find( { tags : " tutorial " } );

D.

db.posts.findInArray( { tags : " tutorial " > );

Discussion
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