MongoDB C100DBA Brain Dumps | C100DBA Simulation Questions

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MongoDB C100DBA exam is an essential certification for professionals who work with MongoDB. It is a globally recognized certification that validates the skills and knowledge required to become a MongoDB Certified DBA Associate. Passing C100DBA Exam demonstrates the ability to manage and maintain MongoDB databases, troubleshoot issues, and optimize performance. Candidates who pass C100DBA exam will have a valuable credential that can help advance their careers.

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MongoDB Certified DBA Associate Exam (Based on MongoDB 4.4) Sample Questions (Q31-Q36):

NEW QUESTION # 31
What tool do you use if you want to extract a CSV from mongo?

Answer:

Explanation:
mongoexport

NEW QUESTION # 32
What does the following $slice query return using the following command? db.posts.find( {}, { comments: {
$slice: [ -10, 5 ] } } )

A. Returns 5 comments, beginning with the first 10 items
B. Returns 5 comments, beginning with the last 10 items
C. Returns 10 comments, beginning with the last
D. Returns 10 comments, beginning with the first

Answer: B

NEW QUESTION # 33
Given a collection posts as shown below having a document array comments, which of the following command will create an index on the comment author descending?

A. db.posts.createIndex({commerits.$.author " :-l});
B. db.posts.createIndex({comments.$.author " : {$desc:l > });
C. db.posts.createIndex({comments.author " :-l});

Answer: C

NEW QUESTION # 34
The difference between $push and $addToSet is:

A. There is no major difference between them. $addToSet is a deprecated version of $push.
B. $addToSet adds the item to the field only if it does not exist already; while $push pushes the item to the field irrespective of whether it was present or not
C. $addToSet needs the fields to be already present while $push will work even if the field is not present
D. $addToSet adds the item to the field only if the new item is of the same datatype

Answer: B

NEW QUESTION # 35
In a sharded replica set environment, the w Option provides ability for write concern and j Option provides ability for the data to be written on disk journal. Consider that we have a seven member replica set and we want to assure that the writes are committed to journal. What should be the value of j?

A. 0
B. 1
C. 2
D. 3

Answer: A

NEW QUESTION # 36
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