Free Amazon SOA-C02 Exam Questions

Question 1

[Monitoring, Reporting, and Automation]An ecommerce company uses an Amazon ElastiCache (Redis) cluster for in-memory caching ofpopular product queries on a shopping website. A SysOps administrator views Amazon CloudWatchmetrics data for the ElastiCache cluster and notices a large number of evictions. The SysOpsadministrator needs to implement a solution to reduce the number of evictions. The solution alsomust keep the popular queries cached. Which solution will meet these requirements with the LEASToperational overhead?

A : Add another node to the ElastiCache cluster.

B : Increase the ElastiCache TTL value.

C : Decrease the ElastiCache TTL value.

D : Migrate to a new ElastiCache cluster that has larger nodes.

Answer: D

Question 2

A company uses an Amazon Simple Queue Service (Amazon SQS) standard queue with its application. The application sends messages to the queue with unique message bodies. The company decides to switch to an SQS FIFO queue.

What must the company do to migrate to an SQS FIFO queue?

A : eate a new SQS FIFO queue. Turn on content-based deduplication on the new FIFO queue. Update the application to include a message group ID in the messages.

B : eate a new SQS FIFO queue. Update the application to include the DelaySeconds parameter in the messages.

C : dify the queue type from SQS standard to SQS FIFO. Turn off content-based deduplication on the queue. Update the application to include a message group ID in the messages.

D : dify the queue type from SQS standard to SQS FIFO. Update the application to send messages with identical message bodies and to include the DelaySeconds parameter in the messages.

Answer: A

Question 3

A company has a cluster of Linux Amazon EC2 Spot Instances that read many files from and write many files to attached Amazon Elastic Block Store (Amazon EBS) volumes. The EC2 instances are frequently started and stopped. As part of the process when an EC2 instance starts, an EBS volume is restored from a snapshot.

EBS volumes that are restored from snapshots are experiencing initial performance that is lower than expected. The company's workload needs almost all the provisioned IOPS on the attached EBS volumes. The EC2 instances are unable to support the workload when the performance of the EBS volumes is too low. A SysOps administrator must implement a solution to ensure that the EBS volumes provide the expected performance when they are restored from snapshots.

Which solution will meet these requirements?

A : Configure fast snapshot restore (FSR) on the snapshots that are used.

B : Restore each snapshot onto an unencrypted EBS volume. Encrypt the EBS volume when the performance stabilizes.

C : Format the EBS volumes as XFS file systems before restoring the snapshots.

D : Increase the Linux read-ahead buffer to 1 MiB.

Answer: A

Question 4

[Monitoring, Reporting, and Automation]An application runs on Amazon EC2 instances that are in an Auto Scaling group. A SysOpsadministrator needs to implement a solution that provides a central storage location for errors thatthe application logs to disk. The solution must provide an alert when the application logs an error.What should the SysOps administrator do to meet these requirements?

A : Deploy and configure the Amazon CloudWatch agent on the EC2 instances to log to a CloudWatchLog group. Create a metric filter on the target CloudWatch Log group. Create a CloudWatch alarmthat publishes to an Amazon Simple Notification Service (Amazon SNS) topic that has an emailsubscription.

B : Create a cron job on the EC2 instances to identify errors and push the errors to an AmazonCloudWatch metric filter. Configure the filter to publish to an Amazon Simple Notification Service(Amazon SNS) topic that has an SMS subscription.

C : Deploy an AWS Lambda function that pushes the errors directly to Amazon CloudWatch Logs.Configure the Lambda function to run every time the log file is updated on disk.

D : Create an Auto Scaling lifecycle hook that invokes an EC2 based script to identify errors. Configurethe script to push the error messages to an Amazon CloudWatch log group when the EC2 instancesscale in. Create a CloudWatch alarm that publishes to an Amazon Simple Notification Service(Amazon SNS) topic that has an email subscription when the number of error messages exceeds athreshold.

Answer: A

Question 5

The company’s ecommerce website running on EC2 instances behind an ALB intermittently returns HTTP 500 errors. The Auto Scaling group is only using EC2 status checks.

A : Replace the ALB with a Network Load Balancer.

B : Add Elastic Load Balancing (ELB) health checks to the Auto Scaling group.

C : Update the target group configuration on the ALB. Enable session affinity (sticky sessions).

D : Install the Amazon CloudWatch agent on all the instances. Configure the agent to reboot the instances.

Answer: B