CLOUD COMPUTING

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CLOUD COMPUTING

AUTOSCALING

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A user has configured ELB with Auto Scaling. The user suspended the Auto Scaling Alarm Notification (which notifies Auto Scaling for CloudWatch alarms) process for a while. What will Auto Scaling do during this period?
A
AWS will not receive the alarms from CloudWatch
B
AWS will receive the alarms but will not execute the Auto Scaling policy
C
Auto Scaling will execute the policy but it will not launch the instances until the process is resumed
D
It is not possible to suspend the AlarmNotification process
Explanation: 

Detailed explanation-1: -If HANDLE PROCS=true, the following Auto Scaling events are suspended automatically during the deployment process: AZRebalance. AlarmNotification.

Detailed explanation-2: -CloudWatch Alarm Limits: 5, 000 alarms per region per AWS account; one-day maximum monitoring period.

Detailed explanation-3: -The Auto Scaling group in your Elastic Beanstalk environment uses two Amazon CloudWatch alarms to trigger scaling operations. The default triggers scale when the average outbound network traffic from each instance is higher than 6 MB or lower than 2 MB over a period of five minutes.

Detailed explanation-4: -The default health checks for an Auto Scaling group are EC2 health checks only. If an instance fails these health checks, it is marked unhealthy and is terminated while Amazon EC2 Auto Scaling launches a new replacement instance.

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