Question 51 : _______ accepts only single argument expression.
1. $setIsSubset
2. $bool
3. $anyElementTrue
4. None of the mentioned
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Question 52 : $setIsSubset returns _______ if all elements of the first set appear in the second set, including when the first set equals the second set.
1. Null
2. True
3. False
4. None of the mentioned
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Question 53 : Which of the following performs a relative complement of the second set relative to the first?
1. $setIntersection
2. $setDifference
3. $setEquals
4. $setUnion
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Question 54 : ________ returns a set with elements that appear in any of the input sets.
1. $setIntersection
2. $setDifference
3. $setEquals
4. $setUnion
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Question 55 : Which of the following accepts any number of argument expression ?
1. $setIntersection
2. $setDifference
3. $setEquals
4. None of the mentioned
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Question 56 : ________ returns true if the input sets have the same distinct elements.
1. $setUnion
2. $setDifference
3. $setEquals
4. None of the mentioned
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Question 57 : ______ expressions ignores the duplicate entries in each input array and the order of the elements.
1. set
2. boolean
3. aggregate
4. none of the mentioned
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Question 58 : MongoDB treats the literals as projection flags, valid only in the _______ stage.
1. $project
2. $gmap
3. $match
4. None of the mentioned
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Question 59 : To avoid treating numeric or boolean literals as projection flags, use the _______ expression to wrap the numeric or boolean literals.
1. $literal
2. $bool
3. $unwin
4. None of the mentioned
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Question 60 : In the vars assignment block, ________ refers to the value of an externally defined variable low .
1. “$$low”
2. “$$lowin”
3. “$$1”
4. None of the mentioned
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