A SysOps Administrator is managing a web application that runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The instances run in an EC2 Auto Scaling group. The administrator wants to set an alarm for when all target instances associated with the ALB are unhealthy. Which condition should be used with the alarm? A) AWS/ApplicationELB HealthyHostCount = 1 C) AWS/EC2 StatusCheckFailed = 1

Question

A SysOps Administrator is managing a web application that runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The instances run in an EC2 Auto Scaling group. The administrator wants to set an alarm for when all target instances associated with the ALB are unhealthy. Which condition should be used with the alarm? A) AWS/ApplicationELB HealthyHostCount <= 0 B) AWS/ApplicationELB UnhealthyHostCount >= 1 C) AWS/EC2 StatusCheckFailed <= 0 D) AWS/EC2 StatusCheckFailed >= 1

Quizplus · Accepted Answer

The condition AWS/ApplicationELB HealthyHostCount <= 0 will trigger the alarm when all target instances behind the ALB are unhealthy, as it checks if the count of healthy hosts is zero or less.

A SysOps Administrator Is Managing a Web Application That Runs