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MongoDB C100DBA Exam - Topic 1 Question 53 Discussion

Actual exam question for MongoDB's C100DBA exam
Question #: 53
Topic #: 1
[All C100DBA Questions]

Consider the following example document from the sample collection. All documents in this collection have the same schema.

Which of the following queries will replace this with the document.

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Suggested Answer: C

by Judy at Jun 14, 2022, 05:45 PM

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Elenore
4 months ago
D seems like a valid option too, but I'm not sure.
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Brianne
4 months ago
B is definitely wrong; you can't do that in one query.
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Rima
4 months ago
Wait, can you really change the _id like that? Seems risky!
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Yvonne
4 months ago
I disagree, I think C is the right choice here.
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Roselle
5 months ago
Option A looks correct for updating the document.
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Lacresha
5 months ago
I have a feeling that option D looks correct, but I can't remember if we need to include additional operators like `$set` or `$unset` in the update.
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Valda
5 months ago
I recall that the first part of the update query should match the document's `_id`, but I'm confused about the use of `justOne` in option B. Does that even apply here?
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Chery
5 months ago
I practiced a similar question where we had to replace a document, and I feel like option C might be the right choice since it mentions `$unset`, but I'm not completely confident.
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Kattie
5 months ago
I think I remember that the update operation needs to specify the correct query and update format, but I'm not sure about the syntax for the `$set` operator.
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Tamesha
5 months ago
Hmm, I'm a bit unsure about this one. The question mentions several different cloud-related concepts, so I'll need to carefully read through the answer choices to figure out which one best fits the description.
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Providencia
5 months ago
I'm a little confused on this one. The options all seem to be talking about different types of financing, but I'm not sure which one specifically defines factoring. I'll have to review my notes and try to eliminate the options that don't seem right.
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Bok
5 months ago
This looks like a pretty straightforward question. I think the key is understanding the relationships between the custom objects and how to leverage that in the Visualforce page.
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Layla
5 months ago
This seems straightforward, I just need to calculate the annual costs for each account and compare them.
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