Point out the correct statement.(a) Data expiration is useful for some classes of information, including machine generated event data, logs, and session information(b) A special TTL index property supports the implementation of TTL collections(c) TTL collections make it possible to store data in MongoDB and have the mongod automatically remove data after a specified number of seconds or at a specific clock time(d) All of the mentioned

Point out the correct statement.(a) Data expiration is useful for some

1.	Point out the correct statement.(a) Data expiration is useful for some classes of information, including machine generated event data, logs, and session information(b) A special TTL index property supports the implementation of TTL collections(c) TTL collections make it possible to store data in MongoDB and have the mongod automatically remove data after a specified number of seconds or at a specific clock time(d) All of the mentioned
Answer» Right option is (d) All of the mentioned The best I can explain: The TTL feature relies on a background thread in mongod that reads the date-typed values in the index and removes expired documents from the collection.