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Building a Basic Aggregation: Test your skills

MongoDB 301: Aggregation Building a Basic Aggregation Exercise 4: Adding processing options to the aggregation Building a Basic Aggregation: Test your skills

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Question 1 of 5

1. Question
You are building an aggregate statement in IntelliShell. You want to include the collation option in the statement. Where do you add the option within the statement?
- Add a stage to the end of the pipeline that defines the option settings.
- Add a stage to the beginning of the pipeline that defines the option settings.
- Add a comma after the pipeline’s closing bracket and then add the option after the comma, enclosed in curly braces.
- Add a comma after the aggregate method’s closing parenthesis and then add the option after the comma, enclosed in square brackets.
Correct

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Question 2 of 5

2. Question
You are building an aggregate statement in IntelliShell. The statement will aggregate data in the customers collection. You want to filter out all customers except those who live in Georgia. Which aggregate method do you use when defining your first stage?
- $match
- $merge
- $replaceRoot
- $replaceWith
Correct

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Question 3 of 5

3. Question
You are building an aggregate statement in IntelliShell. The statement will aggregate data in the customers collection. You want to group the data by the package field and find the average number of transactions per package. Which $group expression should you use?
- { "_id": "sum", "package": { "$total": "$add" } }
- { "_id": "avg", "package": { "$total": "$add" } }
- { "_id": "$package", "total": { "$sum": "$transactions" } }
- { "_id": "$package", "total": { "$avg": "$transactions" } }
Correct

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Question 4 of 5

4. Question
You are building an aggregate statement in IntelliShell. The last stage in the pipeline uses the $sort operator to sort the pipeline documents in descending order, based on the total column. Which argument should you use to specify the sort order?
- 1
- -1
- asc
- desc
Correct

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Question 5 of 5

5. Question
You are building an aggregate statement in IntelliShell. You want to be able to write data to temporary files on disk when running the statement. Which option should you include in your statement?
- The allowDiskUse option set to true.
- The allowDiskUse option set to false.
- The bypassDocumentValidation option set to true.
- The bypassDocumentValidation option set to false.
Correct

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Course Home Expand All

Building a Basic Aggregation

4 Topics | 1 Quiz

Exercise 1: Filtering the documents in the aggregation pipeline

Exercise 2: Grouping the documents in the aggregation pipeline

Exercise 3: Sorting the documents in the aggregation pipeline

Exercise 4: Adding processing options to the aggregation

Building a Basic Aggregation: Test your skills

Introducing the Aggregation Editor

4 Topics | 1 Quiz

Exercise 1: Importing an aggregate statement into the Aggregation Editor

Exercise 2: Replace a field in the aggregation pipeline

Exercise 3: Reorder the fields in the aggregation pipeline

Exercise 4: Changing the sort order in the aggregation pipeline

Introducing the Aggregation Editor: Test your skills

Working with Arrays in the Aggregation Pipeline

5 Topics | 1 Quiz

Exercise 1: Using expression operators to filter input documents

Exercise 2: Unwinding an array to create individual documents

Exercise 3: Grouping array values and generating a document count for each group

Exercise 4: Writing pipeline results to a new collection

Working with Arrays in the Aggregation Pipeline: Test your skills

MongoDB 301 Mid-Course Feedback

Adding Lookup Data to the Aggregation Pipeline

4 Topics | 1 Quiz

Exercise 1: Adding lookup data to the aggregation pipeline

Exercise 2: Converting string values in one of the lookup fields to integers

Exercise 3: Adding a computed ratio field based on the converted lookup field

Exercise 4: Limiting the number of returned documents

Adding Lookup Data to the Aggregation Pipeline: Test your skills

Working with Reschema for MongoDB

4 Topics | 1 Quiz

Exercise 1: Setting up a reschema unit that includes lookup data

Exercise 2: Defining a target collection in the reschema unit

Exercise 3: Adding and scheduling a task to create the target collection

Exercise 4: Running an aggregate statement against the target collection

Working with Reschema for MongoDB: Test your skills

Reporting with Studio 3T Aggregations

3 Topics | 1 Quiz

Exercise 1: Creating a view based on an aggregation query

Exercise 2: Exporting a collection as a .csv file for use by a third-party tool

Exercise 3: Visualizing collection data in MongoDB Charts

Reporting with Studio 3T Aggregations: Test your skills

Return to MongoDB 301: Aggregation

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