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Exam AWS-SysOps topic 1 question 698 discussion

Exam question from Amazon's AWS-SysOps
Question #: 698
Topic #: 1
[All AWS-SysOps Questions]

A web application runs on Amazon EC2 instances behind an Elastic Load Balancing Application Load Balancer (ALB). The instances run in an Auto Scaling group across multiple Availability Zones. A SysOps Administrator has notice that some EC2 instances show up healthy in the Auto Scaling console but show up as unhealthy in the ALB target console.
What could be the issue?

  • A. The health check grace period for the Auto Scaling group is set too low; increase it
  • B. The target group health check is incorrectly configured and needs to be adjusted
  • C. The user data or AMI used for the Auto Scaling group launch configuration is incorrect
  • D. The Auto Scaling group health check type is based on EC2 instance health instead of Elastic Load Balancing health checks
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Suggested Answer: D 🗳️
by schalke04 at Oct. 10, 2019, 3:50 a.m.
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saumenP
Highly Voted 2 years, 6 months ago
D is correct https://aws.amazon.com/premiumsupport/knowledge-center/auto-scaling-terminate-instance/ If an instance's status is OutofService on the ELB console, but the instance's status is Healthy on the Amazon EC2 Auto Scaling console, confirm that the health check type is set to ELB:
upvoted 22 times
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saumenP
Highly Voted 2 years, 7 months ago
D seems to be correct
upvoted 7 times
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albert_kuo
Most Recent 9 months, 3 weeks ago
Selected Answer: D
By default, when an Auto Scaling group is created, it uses EC2 instance health checks as the health check type. However, when using an Application Load Balancer (ALB) in front of the EC2 instances, it is recommended to use Elastic Load Balancing health checks instead.
upvoted 2 times
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TroyMcLure
2 years, 6 months ago
Correct Answer: D
upvoted 1 times
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RicardoD
2 years, 6 months ago
D is the answer Health check type should be ELB health check
upvoted 1 times
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abhishek_m_86
2 years, 6 months ago
D. The Auto Scaling group health check type is based on EC2 instance health instead of Elastic Load Balancing health checks
upvoted 2 times
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jackdryan
2 years, 6 months ago
I'll go with D
upvoted 1 times
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MFDOOM
2 years, 6 months ago
D. The Auto Scaling group health check type is based on EC2 instance health instead of Elastic Load Balancing health checks
upvoted 1 times
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schalke04
2 years, 7 months ago
B. https://docs.aws.amazon.com/autoscaling/ec2/userguide/healthcheck.html
upvoted 1 times
karmaah
2 years, 6 months ago
No . D
upvoted 4 times
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