Explanation:A single MongoDB server typically has multiple databases. 6. _id is a ________ bytes hexadecimal number which assures the uniqueness of every document.
A. 13
B. 16
C. 12
D. 10
Answer:A
Explanation:A single MongoDB server typically has multiple databases. 6. _id is a ________ bytes hexadecimal number which assures the uniqueness of every document.
A. 13 B. 16 C. 12 D. 10
Explanation:You can provide _id while inserting the document. 7. Which of the following statement will insert 400 documents in to the testData collection ?