Explanation:printjson() operation displays all documents. 5. Point out the wrong statement :
A. Documents have static schema in MongoDB
B. Eventually-consistent reads can be distributed over replicated servers
C. Indexes can include keys from embedded documents and arrays.
D. None of the mentioned
Answer:A
Explanation:printjson() operation displays all documents. 5. Point out the wrong statement :
A. Documents have static schema in MongoDB B. Eventually-consistent reads can be distributed over replicated servers C. Indexes can include keys from embedded documents and arrays. D. None of the mentioned
Explanation:Dynamic schema means that documents in the same collection do not need to have the same set of fields or structure, and common fields in a collection’s documents may hold different types of data. 6. Which of the following method is called while accessing documents using the array index notation ?