$addToSet returns an array of all _______ values that results from app – McqOptions

MCQOPTIONS

1.	$addToSet returns an array of all _______ values that results from applying an expression to each document.
A.	unique
B.	non unique
C.	distinct
D.	all of the mentioned
Answer» B. non unique

Discussion

No Comment Found

Related MCQs

Which of the following operation can be optionally used for map reduce?
Pipeline stages can use __________ for tasks such as calculating the average or concatenating a string.
_____ Writes the resulting documents of the aggregation pipeline to a collection.
Which of the following operator is related to geography of data ?
In the vars assignment block, ________ refers to the value of an externally defined variable low .
MongoDB treats the literals as projection flags, valid only in the _______ stage.
To avoid treating numeric or boolean literals as projection flags, use the _______ expression to wrap the numeric or boolean literals.
_______ accepts only single argument expression.
Which of the following method is overrided by Index filters ?
Query shape consists of a combination of query, sort, and _________ specifications.