Topic 1 Question 239

AWS Certified SysOps Administrator - Associate

Topic 1 Question 239
A web application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The instances run in an Auto Scaling group across multiple Availability Zones. A SysOps administrator notices that some of these EC2 instances show up as healthy in the Auto Scaling group but show up as unhealthy in the ALB target group.

What is a possible reason for this issue?
- Security groups are not allowing traffic between the ALB and the failing EC2 instances.
- The Auto Scaling group health check is configured for EC2 status checks.
- The EC2 instances are failing to launch and failing EC2 status checks.
- The target group health check is configured with an incorrect port or path.
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- 正解だと思う選択肢: B
  Answer B https://www.examtopics.com/discussions/amazon/view/6364-exam-aws-sysops-topic-1-question-698-discussion/
  
  👍 7
  fahadadnan2023/02/21
- 正解だと思う選択肢: D
  D. The target group health check is configured with an incorrect port or path.
  
  👍 4
  a1971h2023/02/25
- 正解だと思う選択肢: D
  Problem: Auto Scaling instances might pass the EC2 status checks. But they might fail the Elastic Load Balancing health checks for the target groups or Classic Load Balancers with which the Auto Scaling group is registered.
  
  Solution 1: To pass the Elastic Load Balancing health checks:
  
  OPTION D -> Verify that the security groups for your load balancer and Auto Scaling group are correctly configured.
  
  👍 1
  anderri2023/02/15
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