MongoDB Mastering MongoDB for Beginners (Theory and Projects) - $unset operator

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Information Technology (IT), Architecture
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University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of the unset operator?
To add a new field to a document
To duplicate a field in a document
To remove a specific field from a document
To update the value of a field
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used with the unset operator to remove fields from multiple documents?
find
updatemany
deleteMany
updateOne
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When using the unset operator, what must be specified to remove a field?
The field to be removed
The new value for the field
The document ID
The database name
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you remove a nested field within an object using the unset operator?
By using the delete operator
By specifying the nested field path
By duplicating the object
By renaming the field
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the field values when they are unset?
They are archived
They are set to null
They are completely removed
They are replaced with default values
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