Explanation:Applications can resolve these references to access the related data. Broadly, these are normalized data models. 2. Point out the correct statement :
A. In practice, the documents in a collection share a different structure
B. Data in MongoDB has a flexible schema
C. The key challenge in data modeling is balancing the needs of the application, the performance characteristics of the database engine, and the data retrieval patterns
D. None of the mentioned
Answer:A
Explanation:Applications can resolve these references to access the related data. Broadly, these are normalized data models. 2. Point out the correct statement :
A. In practice, the documents in a collection share a different structure B. Data in MongoDB has a flexible schema C. The key challenge in data modeling is balancing the needs of the application, the performance characteristics of the database engine, and the data retrieval patterns D. None of the mentioned
Explanation:MongoDB’s collections do not enforce document structure. 3. In MongoDB, write operations are atomic at the __________ level.