Sorting and Limiting Data in MongoDB: Intermediate-Level Quiz

Sorting and Limiting Data in MongoDB Quiz

This quiz will test your understanding of MongoDB's sorting, limiting, and skipping features, helping you control query results for efficient data retrieval. Get ready to dive into key methods like sort(), limit(), and skip(), and learn how to organize query results effectively. Good luck!

1 / 20

What is the maximum number of sorting keys you can use in a sort() method in MongoDB?

Unlimited

2 / 20

In MongoDB, what happens if you apply limit(0) to a query?

No documents are returned

Only the first document is returned

An error is generated

The entire dataset is returned

3 / 20

Using a large value in the skip() method can negatively impact performance for large datasets in MongoDB. True or False?

True

False

4 / 20

Which statement best describes the purpose of the limit() method in MongoDB?

Limits the data storage capacity

Limits the number of queries executed

Limits the number of fields returned per document

Limits the number of documents returned in the result set

5 / 20

When using sort() with an index, how does MongoDB optimize sorting?

It temporarily duplicates the collection for faster sorting

It reorders documents in the collection

It uses sorting algorithms at the server level

It leverages the index to retrieve documents in sorted order

6 / 20

Which MongoDB method would you use to retrieve documents starting from the 6th result in a query?

offset(6)

skip(5)

limit(6)

start(6)

7 / 20

In MongoDB, you can sort query results by multiple fields by passing multiple key-value pairs to the sort() method.

True

False

8 / 20

You can use the sort() method to arrange results by multiple fields, and MongoDB will use left-to-right precedence for the order specified. True or False?

True

False

9 / 20

In MongoDB, which of the following commands limits the number of documents returned in a query result?

maxDocs()

restrict()

limit()

count()

10 / 20

When using both sort() and limit() in a MongoDB query, which operation is applied first?

Depends on the field type

sort()

limit()

Depends on the database configuration

11 / 20

To retrieve the 5th through 10th documents from a sorted list, which combination of methods should you use?

sort().skip(4).limit(6)

sort().skip(4).limit(5)

sort().limit(5).skip(10)

sort().skip(10).limit(5)

12 / 20

The sort() and limit() methods can be combined in MongoDB to refine query results. True or False?

True

False

13 / 20

Which of the following options will return documents sorted by price in descending order and limit the result to 10 documents?

db.collection.find().sort({price: -1}).limit(10)

db.collection.find({price: -1}).limit(10)

db.collection.find().limit(10).sort({price: 1})

db.collection.find().sort({price: 1}).limit(10)

14 / 20

Which method is used in MongoDB to sort query results in ascending or descending order?

sortBy()

order()

limit()

sort()

15 / 20

To return only the top 10 highest scores from a scores collection, which of the following queries is correct?

db.scores.find().sort({score: -1}).limit(10)

db.scores.find().sort({score: -10}).limit(1)

db.scores.find().limit(-10).sort({score: -1})

db.scores.find().sort({score: 1}).limit(10)

16 / 20

If both skip() and limit() are applied to a query, the skip() the function is processed before limit() in MongoDB. True or False?

True

False

17 / 20

If a collection is sorted by created_at in ascending order and limited to 3 results, which documents are returned?

Random documents

The most recently created documents

The documents with the smallest IDs

The first three documents based on created_at

18 / 20

The limit() method can be used without sort() to control the number of documents returned. True or False?

True

False

19 / 20

Which value is used to sort documents in descending order using the sort() method?

-1

20 / 20

What is the default order of sorting when using sort() without specifying 1 or -1?

Ascending

Alphabetical

Descending

Random

Your score is

The average score is 0%

Sorting and Limiting Data in MongoDB is crucial for database developers and administrators. This is crucial, especially if you want to optimize data retrieval, improve query performance, and effectively manage large volumes of data in MongoDB.

This quiz is for intermediate MongoDB users looking to test their skills in efficiently retrieving, sorting, and limiting data within MongoDB to optimize query performance, especially in production environments handling large datasets.

Best of luck!