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Insert Operations
Question 1
What is the purpose of insert operations in MongoDB?
- A
Delete documents
- B
Update documents
- C
Add documents
- D
Retrieve documents
Question 2
Which method is used to insert a single document?
- A
insertMany()
- B
insertOne()
- C
addOne()
- D
createOne()
Question 3
Which method is used to insert multiple documents?
- A
insertAll()
- B
insertBulk()
- C
insertMany()
- D
insertMultiple()
Question 4
What does insertMany() return?
- A
Boolean value
- B
Number of documents
- C
Inserted document IDs
- D
Cursor
Question 5
What happens if you use insertOne() without specifying _id?
- A
Error occurs
- B
Document is rejected
- C
MongoDB automatically generates _id
- D
Document is ignored
Question 6
Which method was used earlier but is now deprecated in MongoDB?
- A
insert()
- B
insertOne()
- C
insertMany()
- D
add()
Question 7
What type of data does insertMany() accept?
- A
Single object
- B
Array of documents
- C
String
- D
Number
Question 8
Can insertOne() insert multiple documents?
- A
Yes
- B
No
- C
Sometimes
- D
Only in bulk mode
Question 9
What happens if one document fails in insertMany() (ordered=true)?
- A
All documents are inserted
- B
Operation stops at failure
- C
It retries automatically
- D
It ignores errors
Question 10
Which option improves performance for bulk inserts?
- A
insertOne()
- B
insertMany()
- C
find()
- D
updateOne()
There are 10 questions to complete.
