_________ returns a value without parsing.
A. $string
B. $literal
C. $characters
D. None of the mentioned
Answer:A
_________ returns a value without parsing.
A. $string B. $literal C. $characters D. None of the mentioned
Explanation:Use for values that the aggregation pipeline may interpret as an expression. 10.db.collection.aggregate() returns a _______ and can return result sets of any size.