Explanation:With the embedded data model, your application can retrieve the complete patron information with one query. 4. Which of the following is used to avoid repetition of data in MongoDB schema ?
A. DeReferences
B. References
C. Cursor
D. Collectors
Answer:A
Explanation:With the embedded data model, your application can retrieve the complete patron information with one query. 4. Which of the following is used to avoid repetition of data in MongoDB schema ?
A. DeReferences B. References C. Cursor D. Collectors
Explanation:When using references, the growth of the relationships determine where to store the reference. 5. Point out the wrong statement :