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Which of the following collections work in a way similar to circular buffers?

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Which of the following collections work in a way similar to circular buffers?

(a) Capped

(b) Secondary

(c) Sharded

(d) All of the mentioned

I got this question in class test.

This intriguing question originated from Capped Collections in division Monitoring MongoDB and Optimization Strategies for MongoDB of MongoDB

1 Answer

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Best answer
Correct answer is (a) Capped

The best explanation: Once a collection fills its allocated space, it makes room for new documents by overwriting the oldest documents in the collection.

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