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MongoDB C100DBA Exam - Topic 1 Question 1 Discussion

What does the following aggregate query perform?
C) Calculates the number of posts with likes between 100 and 200
A) Fetches the posts with likes between 100 and 200 and sets their _id as null
B) Groups the posts by number of likes (101, 102, 103.) by adding 1 every time
D) Fetches the posts with likes between 100 and 200, sets the _id of the first document as null and then increments it 1 every time

MongoDB C100DBA Exam - Topic 1 Question 1 Discussion

Actual exam question for MongoDB's C100DBA exam
Question #: 1
Topic #: 1
[All C100DBA Questions]

What does the following aggregate query perform?

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Suggested Answer: C

by Louvenia at May 09, 2022, 02:05 AM

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Gianna
8 months ago
Wait, really? I thought it grouped them by likes.
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Lino
9 months ago
Nah, it doesn't set the _id to null like that.
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Buck
9 months ago
I think it's option D, not sure though.
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Jaime
9 months ago
Totally agree, it's option C!
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Lou
9 months ago
It counts posts with likes between 100 and 200.
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Noemi
9 months ago
I’m leaning towards option C, as it seems the most straightforward based on what we studied about aggregate queries.
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Nieves
9 months ago
I feel like option D sounds familiar, but it seems a bit complicated for what the question is asking.
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Joesph
9 months ago
I remember a practice question that involved grouping data by likes, but I can't recall if that's what this one does.
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Josefa
9 months ago
I think this query might be calculating the number of posts with likes between 100 and 200, but I'm not entirely sure.
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Hannah
9 months ago
Okay, let me think this through. A SnapMirror license is definitely required, but I'm not sure if a separate SnapMirror Synchronous license is needed on both clusters or just one. I'll go with A and D to be safe.
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Adell
9 months ago
Okay, let me see... The PRINCE2 method has four integrated elements, and the question is asking about the missing one. I'm leaning towards "processes" as the best answer, but I'll double-check the other options just to be sure.
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Srishti
3 years ago
B
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