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MongoDB Exam C100DBA Topic 1 Question 74 Discussion

Actual exam question for MongoDB's C100DBA exam
Question #: 74
Topic #: 1
[All C100DBA Questions]

You have the following index on the toys collection:

{

"manufacturer" : 1,

"name" : 1,

"date" : -1

}

Which of the following is able to use the index for the query? Check all that apply.

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Suggested Answer: A

by Moon at Aug 30, 2023, 11:07 PM

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Lenna
5 days ago
Well, it's a good thing we have this handy index to help us find our toys. I can't imagine trying to sort through all those 'Big Rig Trucks' and 'Brick Sets' without it.
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Youlanda
9 days ago
I bet the MongoDB engineers were having a blast coming up with those toy company names like 'Tanko' and 'Loggo'!
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Bronwyn
13 days ago
The index can be used for the query in option C. The order of the fields in the index matches the order in the query.
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Brandon
26 days ago
Hmm, I'm not sure if the index can be used for the query in option B. The order of the fields in the index doesn't match the order in the query.
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Golda
27 days ago
I'm not sure, but I think option B might also be able to use the index since it includes all the fields in the index.
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Marica
28 days ago
The index can definitely be used for the query in option A. The order of the index fields matches the order of the query fields.
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Alita
29 days ago
I agree with Nickolas, option A is the only one that can use the index effectively.
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Nickolas
30 days ago
I think option A can use the index because it matches the order of fields in the index.
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