n a distributed database system, the Read$-$One$-$Write$-$All replica handling rule states

that:

$)$ data can be read at any site with a replica, but must be written at all sites with replicas

O data can be read at any site with a$-$eplica, and written at the same site Call data must be read at the same site, and written at that site Call data must be read at the same site, but must be written at all sites with replicas