C100DBA · Question #11
What is the maximum size of a MongoDB document?
The correct answer is D. 16 MB. MongoDB enforces a hard limit of 16 MB per document, a design constraint that encourages normalized data modeling and prevents individual documents from consuming excessive memory or network bandwidth. A (2 MB) is incorrect - this is a common confusion, possibly mixed up with oth
Question
What is the maximum size of a MongoDB document?
Options
- A2 MB
- B12 MB
- CThere is no maximum size. It depends on the RAM.
- D16 MB
How the community answered
(38 responses)- A3% (1)
- B3% (1)
- C8% (3)
- D87% (33)
Explanation
MongoDB enforces a hard limit of 16 MB per document, a design constraint that encourages normalized data modeling and prevents individual documents from consuming excessive memory or network bandwidth.
- A (2 MB) is incorrect - this is a common confusion, possibly mixed up with other database limits or message queue constraints.
- B (12 MB) is a plausible-sounding distractor but has no basis in MongoDB's actual specification.
- C (no maximum) is incorrect - while RAM does influence performance, MongoDB's 16 MB cap is a strict BSON document size limit enforced at the driver and server level, regardless of available RAM.
Memory tip: Think "16 MB = MongoDB" - both start with the same number of letters as their value: MongoDB → 16 (or simply remember that MongoDB's logo is a leaf, and 16 is a power of 2, which fits the binary/database theme).
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