During a planned outage how will AWS ensure that a switch from DB to a standby replica will not affect access to the application?
RDS will have an internal IP which will redirect all requests to the new DB
RDS uses DNS to switch over to stand by replica for seamless transition
The switch over changes Hardware so RDS does not need to worry about access
RDS will have both the DBs running independently and the user has to manually switch over
Explanations:
RDS does not use internal IP redirection for failover; DNS-based failover is used to point to the new primary instance.
RDS uses DNS to handle failover and automatically switches the application to the standby replica to ensure seamless transition during a planned outage.
The failover process does not involve changing hardware. It relies on DNS-based failover to redirect traffic to the standby.
RDS automatically handles the failover process during planned outages, so manual intervention is not required.