MongoDB interview questions part 51
MongoDB interview questions part 51
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Total Questions: 8
1. When inserts, updates and deletes have a _________ write concern, write operations return quickly.
Correct Answer is : weak
2. The mongo shell and the MongoDB drivers use __________ as the default write concern.
Correct Answer is : Acknowledged
3. Point out the wrong statement :
Correct Answer is : When a query does not include a shard key, the mongos can use cluster metadata from the config database to route the queries to shards
4. _____________ is used to control mongod commits in the journal.
Correct Answer is : commitIntervalMs
5. Clients can set a __________ value as part of a replica acknowledged write concern.
Correct Answer is : wtimeout
6. MongoDB does not ___________ modifications made before the wtimeout interval expired.
Correct Answer is : rollback
7. With an __________ write concern, MongoDB does not acknowledge the receipt of write operations.
Correct Answer is : Unacknowledged
8. With a receipt acknowledged write concern, the _________confirms that it received the write operation and applied the change to the in-memory view of data.
Correct Answer is : mongod
