MongoDB Associate Database Administrator(Based on MongoDB 6.0 and 7.0+) C100DBA Question # 12 Topic 2 Discussion
C100DBA Exam Topic 2 Question 12 Discussion:
Question #: 12
Topic #: 2
Consider the following document from the products collection:
What does the following query using $elemMatch return? db.products.find( { product_code: " 345678 " }, { variations: { $elemMatch: { size: ^L^ } } } )
A.
Returns the complete document but retrieves only the size field from the array
B.
Returns the document but with only one element in the variations array (corresponding to size L)
C.
Returns the complete document since MongoDB does not support partial array retrieval
D.
Returns the complete document but retrieves only the size field from the array and also with only one element in the variations array (corresponding to size L)
Chosen Answer:
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