MongoDB Practice Test 8

1. All other instances, secondaries, apply operations from the _________ so that they have the same data set.

2. When the TTL thread is active, you will see _______ operations in the output of db.currentOp().

3. To avoid creating an index with a name that exceeds the index name length limit, you can pass the _____ option to the db.collection.createIndex() method.

4. A _______ set is a group of mongod instances that host the same data set.

5. __________ views partial execution statistics collected during plan selection.

6. Indexes do not have to fit entirely into ______ in all cases.

7. You can combine the ________ constraint with the sparse index to filter these null values from the unique index and avoid the error.

8. Sort operations that do not use an index will abort when they use _______ megabytes of memory.

9. Only the ______ geospatial index supports the $polygon operator.

10. On replica sets, the TTL background thread only deletes documents on _____________