# Overview An active-passive load balancer is a... #flashcard type of load balancer points can point to two sets of resources. One set that is active (i.e. 'on') and one set that is passive (i.e., 'off). The load balancer monitors the status of the active resources and, should they fail, routes traffic to the passive resources once they are turned 'on'. # Key Considerations - The checks of the status of the active resources is done by a process called [[Health Checking]] DELETE <!--ID: 1751507776493--> # Pros - Provides a means of failover to improve [[Fault Tolerance]] of the system # Cons - May result in downtime while the passive resources are becoming active # Use Cases # Related Topics