11. |
After starting the mongo shell, your session will use the ________ database by default.
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Answer:
Option (c) |
12. |
Which of the following operation is used to switch to a new database mydb?
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Answer:
Option (c) |
13. |
Which of the following method is used to query documents in collections?
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Answer:
Option (a) |
14. |
What is the maximum size of a MongoDB document?
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Answer:
Option (b) |
15. |
What is the equivalent command in MongoDB for the following SQL query?
SELECT * FROM posts WHERE author like "%john%"
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Answer:
Option (a) |
16. |
In MongoDB, _________ operations modify the data of a single collection.
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Answer:
Option (a) |
17. |
Which of the following method returns true if the cursor has documents?
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Answer:
Option (b) |
18. |
Which of the following method is called while accessing documents using the array index notation?
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Answer:
Option (b) |
19. |
Which of the following method returns one document?
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Answer:
Option (a) |
20. |
The ________ message is used to update a document in a collection.
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Answer:
Option (b) |