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MongoDB C100DBA Exam - Topic 1 Question 33 Discussion

Actual exam question for MongoDB's C100DBA exam
Question #: 33
Topic #: 1
[All C100DBA Questions]

Which command can be used to rebuild the indexes on a collection in MongoDB?

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Suggested Answer: C

by Ammie at May 06, 2022, 11:28 AM

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Kirk
7 months ago
I remember using createIndex for something similar, though.
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Georgiana
7 months ago
I agree, reIndex is the right command!
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Erick
7 months ago
Wait, are we sure about that? Seems off.
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Crista
7 months ago
I thought it was createIndex, but I guess not.
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Yuki
8 months ago
It's definitely db.collection.reIndex({author:l})!
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Elbert
8 months ago
I want to say it's "db.collection.reIndex()" but I'm not completely confident about the parameters.
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Reta
8 months ago
I practiced a question like this, and I remember that "createIndex" is used for creating indexes, but rebuilding might be different.
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Renay
8 months ago
I feel like "reIndex" is definitely part of the command, but I'm not sure if it's used with "db.collection" or something else.
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Merilyn
8 months ago
I think the command for rebuilding indexes is similar to creating them, but I can't remember the exact syntax.
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Marg
8 months ago
Okay, let me think this through. If there's no way to link the email to an existing case or incident, then creating a new one makes sense. I'll go with option D - a new case is created.
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Myra
8 months ago
This seems like a tricky one. I'll have to think carefully about which attribute would be responsible for de-duplication.
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Leonora
8 months ago
I've got this! For unicast, the source sends a single copy to a single receiver. Broadcast is when the source sends a single copy that is delivered to all receivers on the network. Anycast is when the source sends a single copy that is delivered to the nearest receiver.
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