Question

_________ stores a log of the operations in a replica set.

(a) oplog.rs

(b) log.rs

(c) oplog

(d) all of the mentioned

I got this question in exam.

This interesting question is from Capped Collections in division Monitoring MongoDB and Optimization Strategies for MongoDB of MongoDB

Answer 1

Correct choice is (a) oplog.rs

The explanation is: Built-in first-in-first-out property maintains the order of events while managing storage use.