A user has hosted an application on EC2 instances. The EC2 instances are configured with ELB
and Auto Scaling. The application server session time out is 2 hours. The user wants to configure
connection draining to ensure that all in-flight requests are supported by ELB even though the
instance is being deregistered. What time out period should the user specify for connection
draining?
A.
5 minutes
B.
1 hour
C.
30 minutes
D.
2 hours
Max timeout is 3600 seconds for connection draining so Ans is B
B
When you enable connection draining, you can specify a maximum time for the load balancer to keep connections alive before reporting the instance as de-registered. The maximum timeout value can be set between 1 and 3,600 seconds (the default is 300 seconds). When the maximum time limit is reached, the load balancer forcibly closes connections to the de-registering instance.
So Ans : B