Explanation:There may be a delay between the time a document expires and the time that MongoDB removes the document from the database. 3. When the TTL thread is active, you will see _______ operations in the output of db.currentOp()
A. delete
B. update
C. insert
D. None of the mentioned
Answer:A
Explanation:There may be a delay between the time a document expires and the time that MongoDB removes the document from the database. 3. When the TTL thread is active, you will see _______ operations in the output of db.currentOp()
A. delete B. update C. insert D. None of the mentioned
Explanation:A background thread in mongod reads the values in the index and removes expired documents from the collection. 4. The background task that removes expired documents runs every ________ seconds.