MongoDB 면접 질문과 답변
Test your skills through the online practice test: MongoDB Quiz Online Practice Test
Ques 11. What is the role of the profiler in MongoDB?
The profiler is a MongoDB feature that tracks queries executed against the database. It helps in analyzing and optimizing query performance.
도움이 되었나요?
Add Comment
View Comments
Ques 12. How do you perform aggregation in MongoDB?
MongoDB provides the `aggregate` method to perform aggregation operations, such as filtering, grouping, sorting, and projecting data.
도움이 되었나요?
Add Comment
View Comments
Ques 13. Explain the GridFS in MongoDB.
GridFS is a specification for storing and retrieving large files in MongoDB. It divides a file into chunks and stores each chunk as a separate document.
도움이 되었나요?
Add Comment
View Comments
Ques 14. What is the use of the `explain` method in MongoDB?
The `explain` method provides information on the query execution plan, helping in optimizing and understanding how a query is executed.
도움이 되었나요?
Add Comment
View Comments
Ques 15. What is the TTL (Time To Live) index in MongoDB?
The TTL index is a special type of index that automatically deletes documents from a collection after a specified amount of time has passed.
도움이 되었나요?
Add Comment
View Comments
Most helpful rated by users: