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C100DBA MongoDB Exam Lab Questions

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Total 132 questions

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

Question 17

The________operator can be used to identify an element in the array to be updated without explicitly specifying

the position of the element.

Options:

A.

$ elemMatch

B.

$slice

C.

Updating an array field without knowing its index is not possible.

D.

$

Question 18

What tool do you use to see if you have a problem in the consumption of disk I / 0?

Options:

Question 19

Which of the following aggregate commands in MongoDB uses a pipeline approach with the goals of improving the aggregation performance?

Options:

A.

mapReduce

B.

group

C.

aggregate

D.

All of the above

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Total 132 questions