Amazon Web Services SOA-C01 Practice Exam Dumps 2025

A SysOps Administrator created an AWS CloudFormation template for the first time. The stack failed with a status of ROLLBACK_COMPLETE. The Administrator identified and resolved the template issue causing the failure.

How should the Administrator continue with the stack deployment?

Options:

Delete the failed stack and create a new stack.

Execute a change set on the failed stack.

Perform an update-stack action on the failed stack.

Run a validate-template command.

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Question 2

An application is running on Amazon EC2 Instances behind an Application Load Balancer (ALB). An operations team wants to be notified in near-teal time when the ALB has issues connecting to backend EC2 instances.

Which solution will meet these requirements with the LEAST amount of effort?

Options:

Configure the ALB to send logs to Amazon S3. Write an AWS Lambda function to process the log files and send an email message to the operations team when the number of requests exceeds the threshold.

Create an Amazon CloudWatch rule to monitor the HealthyHostCount metric and send Amazon Simple Notification Service (Amazon SNS) messages to the operations team when HealthyHostCount is equal to zero.

Create an Amazon CloudWatch rule lo monitor the TargetConnectionErrorCount metric and send Amazon Simple Notification Service (Amazon SNS) messages to the operations team when TargetConnectionErrorCount is greater than 1.

Create an Amazon CloudWatch rule to monitor the HTTPCode_Target_5XX_Count metric and send Amazon Simple Notification Service (Amazon SNS) messages to the operations team when HTTPCode_Target_5XX_Count is greater than zero.

Question 3

A company has received a notification in its AWS Personal Health Dashboard that one of its Amazon EBS-backed Amazon EC2 instances is on hardware that is scheduled maintenance The instance runs a critical production workload that must be available during normal business hours

Which steps will ensure that the instance maintenance does not produce an outage?

Options:

Configure an Amazon Lambda function to automatically start the instance if it is stopped

Create an Amazon Machine Image (AMI) of the instance and use the AMI to launch a new instance once the existing instance is retired

Enable termination protection on the EC2 instance

Stop and start the EC2 instance during a maintenance window outside of normal business hours

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