Courseiva
← SAA-C03
Full test
hardmultiple choiceObjective-mapped

Exhibit

$ aws autoscaling describe-auto-scaling-groups --auto-scaling-group-names orders-asg
{
  "AutoScalingGroups": [
    {
      "AutoScalingGroupName": "orders-asg",
      "DesiredCapacity": 4,
      "MinSize": 4,
      "MaxSize": 8,
      "AvailabilityZones": ["us-east-1a", "us-east-1b"],
      "HealthCheckType": "EC2",
      "HealthCheckGracePeriod": 300,
      "TargetGroupARNs": ["arn:aws:elasticloadbalancing:us-east-1:111122223333:targetgroup/orders-tg/abcd1234"]
    }
  ]
}
$ aws elbv2 describe-target-health --target-group-arn arn:aws:elasticloadbalancing:us-east-1:111122223333:targetgroup/orders-tg/abcd1234
TARGETS
 i-01e2a3b4: healthy
 i-02e3b4c5: healthy
 i-03f4c5d6: unhealthy
 i-04a5d6e7: unhealthy

Application health endpoint:
2026-04-27T13:05:22Z GET /health -> 500
EC2 status checks: passing

Based on the exhibit, the application tier is not replacing unhealthy instances even though the Auto Scaling group spans two Availability Zones. What change most directly improves automatic recovery when the application process fails?

Question 1hardmultiple choice
Full question →

Based on the exhibit, the application tier is not replacing unhealthy instances even though the Auto Scaling group spans two Availability Zones. What change most directly improves automatic recovery when the application process fails?

Full question →

Answer choices

Why each option matters

Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.

A

Distractor review

Increase the ASG desired capacity so that extra instances absorb the failed ones.

This adds capacity, but it does not make the group react to application-level failure faster or more accurately.

B

Best answer

Set the Auto Scaling group health check type to ELB so target group health determines replacement.

This makes Auto Scaling replace instances that fail the load balancer health check even when EC2 status checks still pass. The exhibit shows the application health endpoint returns 500 while EC2 checks remain passing, so EC2-only health checks miss the failure. ELB-based health checks align replacement with real application availability.

C

Distractor review

Replace the Application Load Balancer with a Network Load Balancer to improve failover speed.

A Network Load Balancer changes the traffic layer, but it does not solve the instance-replacement problem shown in the exhibit.

D

Distractor review

Increase the HealthCheckGracePeriod to the maximum value so the instances have more time to stabilize.

A longer grace period delays health evaluation after launch, but the unhealthy instances here are already running and returning 500 responses.

Common exam trap

Common exam trap: NAT rules depend on direction and matching traffic

NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.

Technical deep dive

How to think about this question

NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.

KKey Concepts to Remember

  • Static NAT maps one inside address to one outside address.
  • PAT allows many inside hosts to share one public address using ports.
  • Inside local and inside global describe the private and translated addresses.
  • NAT ACLs identify traffic for translation, not always security filtering.

TExam Day Tips

  • Identify inside and outside interfaces first.
  • Check whether the scenario needs static NAT, dynamic NAT or PAT.
  • Do not confuse NAT matching ACLs with normal packet-filtering intent.

Related practice questions

Related SAA-C03 practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

SAA-C03 VPC practice questions

Practise SAA-C03 questions linked to SAA-C03 VPC.

SAA-C03 S3 lifecycle policy questions

Practise SAA-C03 questions linked to SAA-C03 S3 lifecycle policy questions.

SAA-C03 RDS Multi-AZ questions

Practise SAA-C03 questions linked to SAA-C03 RDS Multi-AZ questions.

SAA-C03 IAM policy practice questions

Practise SAA-C03 questions linked to SAA-C03 IAM policy.

SAA-C03 Route 53 failover questions

Practise SAA-C03 questions linked to SAA-C03 Route 53 failover questions.

SAA-C03 CloudFront practice questions

Practise SAA-C03 questions linked to SAA-C03 CloudFront.

SAA-C03 NAT gateway questions

Practise SAA-C03 questions linked to SAA-C03 NAT gateway questions.

SAA-C03 VPC endpoint questions

Practise SAA-C03 questions linked to SAA-C03 VPC endpoint questions.

SAA-C03 Auto Scaling practice questions

Practise SAA-C03 questions linked to SAA-C03 Auto Scaling.

SAA-C03 disaster recovery questions

Practise SAA-C03 questions linked to SAA-C03 disaster recovery questions.

SAA-C03 high availability questions

Practise SAA-C03 questions linked to SAA-C03 high availability questions.

SAA-C03 cost optimization questions

Practise SAA-C03 questions linked to SAA-C03 cost optimization questions.

More questions from this exam

Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.

Question 1

A team needs to distribute TCP traffic (not HTTP) across multiple services. The services must see the original client source IP for auditing. Which AWS load balancer is the best fit?

Question 2

A team wants to run containerized services with AWS-managed orchestration and autoscaling. They do NOT require Kubernetes compatibility. Which AWS service choice is most appropriate to meet these goals?

Question 3

A solutions architect is designing an S3 bucket for a IoT ingestion API. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure? The design must avoid adding custom operational scripts.

Question 4

A solutions architect is designing an S3 bucket for a claims portal. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure?

Question 5

A team wants to delegate IAM management to developers, but must ensure developers can never grant themselves permissions beyond a specific limit. Which AWS mechanism best matches this requirement?

Question 6

A solutions architect is designing an S3 bucket for a healthcare document service. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure?

FAQ

Questions learners often ask

What does this SAA-C03 question test?

Static NAT maps one inside address to one outside address.

What is the correct answer to this question?

The correct answer is: Set the Auto Scaling group health check type to ELB so target group health determines replacement. — The exhibit shows a classic mismatch between infrastructure health and application health. EC2 status checks are passing, but the application's /health endpoint is returning 500 and the target group marks two instances unhealthy. Auto Scaling is currently using EC2 health checks only, so it will not terminate and replace instances whose operating system is up but whose application has failed. Switching the ASG to use ELB health checks lets the target group drive replacement based on real service health. Why others are wrong: Increasing desired capacity only adds more instances and does not correct the unhealthy ones. Replacing the ALB with an NLB changes load-balancing behavior but does not make Auto Scaling react to app failures. Raising the grace period only delays evaluation after launch; it does not help when running instances are already failing health checks.

What should I do if I get this SAA-C03 question wrong?

Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.

Discussion

Loading comments…

Sign in to join the discussion.