MongoDB C100DBA Exam - Topic 2 Question 112 Discussion

Actual exam question for MongoDB's C100DBA exam

Question #: 112
Topic #: 2

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.

A$aggregate

B$sum

C$match

D$group

Show Suggested Answer

Suggested Answer: C

by Karol at Jun 14, 2025, 06:26 AM

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Virgie

7 months ago

$sum is for adding values, not filtering.

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Nobuko

7 months ago

Totally agree, $match is the one.

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Olga

7 months ago

Wait, is it really $match? I thought it was $filter.

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Danica

7 months ago

$group is for grouping, not filtering.

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Lindy

8 months ago

It's definitely $match!

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Linn

8 months ago

I feel like $match is definitely the filtering command, but I wonder if there are any exceptions or specific cases where it might not apply.

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Carissa

8 months ago

I’m a bit confused; I thought $group also filtered documents, but maybe it’s more about grouping them instead?

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Beckie

8 months ago

I remember practicing a question where $match was used to filter documents in an aggregation pipeline. It seems like the right choice here.

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Nu

9 months ago

I think the command we're looking for is $match, but I'm not completely sure if it’s the only one that filters documents.

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Natalie

9 months ago

I think the $match stage is the one we're looking for. It's used to filter the documents based on specified criteria, which is exactly what the question is asking about. Feeling pretty confident on this one!

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Kaycee

9 months ago

The $match stage is definitely the way to go here. It allows you to specify conditions to filter the documents before they move on to the next stage of the pipeline. Gotta love those MongoDB aggregation commands!

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Sherrell

9 months ago

Hmm, I'm a bit confused on this one. I know the aggregation pipeline has different stages, but I can't quite remember which one is used for filtering. I'll have to review my notes on that.

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Rosalyn

9 months ago

I'm pretty sure the answer is C. $match is the command used to filter documents in the MongoDB aggregation pipeline.

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Marge

12 months ago

I'm feeling lucky, let's go with C) $match. It's the only one that doesn't sound like it's trying to sell me a used car.

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Rasheeda

11 months ago

User 2: Yeah, I agree. It's used to filter the documents based on specified conditions.

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Lyda

11 months ago

User 1: I think C) $match is the correct answer.

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Diego

1 year ago

C) $match, because I'm not about to let those documents slip through the cracks. Gotta keep 'em in line, am I right?

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Ronald

1 year ago

Hmm, let me think... C) $match, because that's the only option that sounds like it could actually do something useful in an aggregation pipeline.

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Rozella

11 months ago

That's correct, $match is the command used to filter documents in MongoDB aggregation.

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Erinn

11 months ago

Yes, $match is the correct option for filtering documents in aggregation pipelines.

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Helga

12 months ago

I think you're right, C) $match is used to filter documents in MongoDB aggregation.

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Salome

1 year ago

I'm not sure, but I think $group is used for grouping documents, not filtering them. So, I would go with C) $match as well.

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Catrice

1 year ago

I agree with Demetra. $match is used to filter documents before passing them to the next stage in the aggregation pipeline.

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Mari

1 year ago

Well, well, well, look who's trying to trick us with these fancy MongoDB commands. I'm gonna go with C) $match, it's the only one that makes sense here.

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