The oplog (operations log) is a special capped collection that keeps a rolling record of all operations that modify the data stored in your databases.

The oplog (operations log) is a special capped collection that keeps a rolling record of all operations that modify the data stored in your databases.

All the replica set members contain a copy of the oplog in the following collection:
A . oplog.rs
B . <database>..oplog.rs
C . <replicasetid>.oplog.rs
D . local.oplog.rs

View Answer

Answer: D