Exam C100DBA Topic 3 Question 31 Discussion

Actual exam question for MongoDB's C100DBA exam
Question #: 31
Topic #: 3
What does the output x of the following MongoDB aggregation query result into; db.posts.aggregate( [ {
$group: { _id; "$author", x: { $sum: $likes } } } ] )

Suggested Answer: B Vote an answer

by Roy at May 30, 2026, 12:05 PM

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