Question

Point out the wrong statement.

(a) Administrators must apply or discard rollback data manually

(b) Network partitions could not prevent the set from being able to form a majority

(c) Replica sets remove “rollback” data when needed without intervention

(d) None of the mentioned

I got this question during an online exam.

Question is from Read and Write Semantics in section Replication Concepts, Processes and Replication Set of MongoDB

Answer 1

Right choice is (b) Network partitions could not prevent the set from being able to form a majority

To elaborate: When a rollback does occur, it is often the result of a network partition.