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Question 55/92
We have the following schema for a movies collection: { _id: ObjectId, title: String, genres: Array, languages: Array, year: 32-bit integer } And the following index on the movies collection: { title: 1 } Which of the following queries will use the given index to perform the sorting stage?
Correct Answer: B,C,D
db.movies.find( { genres: "Drama" } ).sort( { title: 1 } ) Yes, in this case the index will be used to retrieve the sorted documents and then it will filter the movies matching the genre. https://docs.mongodb.com/manual/indexes/
- Question List (92q)
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- Question 28: Given the following example document from an artists collect...
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- Question 37: You have the following config file: storage: dbPath: /data/d...
- Question 38: Given a movies collection where each document has the follow...
- Question 39: Suppose you have a reviews collection in your database and y...
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- Question 42: Use case: e-learning platform Which of the following scenari...
- Question 43: Given a movies collection where each document has the follow...
- Question 44: What stages will cause a merge on the primary shard for a da...
- Question 45: Select all true statements about reconfiguring a replica set...
- Question 46: Which collection method do you need to use to drop a specifi...
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- Question 49: We have a movies collection with the following document stru...
- Question 50: Use case: e-learning platform Which of the following scenari...
- Question 51: Which of the following commands will add a collection that i...
- Question 52: Data modeling. You are considering the use of nesting or the...
- Question 53: Let's consider a one-to-many relationship observed between a...
- Question 54: Select all true statement regarding to the MongoDB (BSON, JS...
- Question 55: We have the following schema for a movies collection: { _id:...
- Question 56: In your database there is a collection named companies with ...
- Question 57: Suppose you insert the following documents into companies co...
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- Question 70: Why is MongoDB using BSON instead of JSON to store data? Sel...
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- Question 77: Given a companies collection where each document has the fol...
- Question 78: Which of the following commands will add a collection that i...
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- 1 commentQuestion 84: Complete the sentence below.
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