Database Replication :-Database replication refers to the group of techniques in which data is copied and these copies are distributed from one database to another.
Backup:- In a simple way backup is a copy of data and store it which place where it is secure and retrieve it when i need.
Replication:- Database replication is the frequent electronic copying data from a database in one computer or server to a database in another so that all users share the same level of information
