An Elastic Load balancer has just been setup with the following settings
HealthCheck Interval - 5 seconds
Healthy threshold -5
UnHealthy threshold -6
How long will an instance take to become healthy with the above settings?
 

Answer options:

A.30 seconds
B.5 seconds
C.60 seconds
D.25 seconds

Answer – D
If the instance checks pass through and the all ELB health pings work, then the Instance would be marked as healthy after HealthCheck Interval* Healthy threshold time interval.
For more information on configuring health checks for the ELB please refer to the below URL:
http://docs.aws.amazon.com/elasticloadbalancing/latest/classic/elb-healthchecks.html