What is the primary function of the exist operator in MongoDB?
MongoDB Mastering MongoDB for Beginners (Theory and Projects) - $exists Operator

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To check if a document is empty
To verify the presence of a specific field in a document
To count the number of fields in a document
To sort documents based on a field
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which scenario is the exist operator particularly useful?
When you want to update a document
When you want to delete a document
When you need to sort documents by date
When you need to check if a student's marks are recorded
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you filter documents where a field does not exist using the exist operator?
Set the exist operator to true
Use the OR operator
Set the exist operator to false
Use the NOT operator
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What logical operator can be used with the exist operator to filter documents based on multiple conditions?
NOR
OR
NOT
AND
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you check if a field exists and has a specific value without using the AND operator?
Use the exist operator with EQ
Use the OR operator
Use the NOT operator
Use the IN operator
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common misconception about the exist operator in MongoDB?
It can only be used with numeric fields
It functions the same as the SQL exist operator
It is used to delete fields
It is used to sort documents
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In MongoDB, which operator is used similarly to the SQL exist operator?
IN
LIKE
BETWEEN
OUT
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