Question: What happens to a Replica set oplog if it runs out of memory?
- `The oplog will be saved on one of the secondary servers.`
- `The oplog is capped collection and can't run out of memory`
- `The MongoDB instance will fail`
- `The oplog will stop recording logging information`
Answer: The correct answer of the above question is Option A:`The oplog will be saved on one of the secondary servers.`