C100DBA · Question #10
What is the maximum size of a MongoDB document
The correct answer is A. 16 MB. MongoDB enforces a hard limit of 16 MB per document, a deliberate design choice to prevent single documents from consuming excessive memory during query processing. Options B (12 MB) and C (2 MB) are simply incorrect values that don't correspond to any MongoDB limit. Option D is
Question
What is the maximum size of a MongoDB document
Options
- A16 MB
- B12 MB
- C2 MB
- DThere is no maximum size. It depends on the RAM.
How the community answered
(35 responses)- A89% (31)
- B6% (2)
- C3% (1)
- D3% (1)
Explanation
MongoDB enforces a hard limit of 16 MB per document, a deliberate design choice to prevent single documents from consuming excessive memory during query processing. Options B (12 MB) and C (2 MB) are simply incorrect values that don't correspond to any MongoDB limit. Option D is a common misconception - MongoDB's document size limit is a fixed constant in the engine, not a runtime constraint tied to available RAM.
Memory tip: Think "16 MB = 16 megabytes = MongoDB's max" - the M in MB can remind you of MongoDB, and 16 is the only power of 2 that maps to this limit.
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