SOA-C03 Free Practice Test

A company??s reporting job that previously ran in 15 minutes is now taking 1 hour. The application runs on Amazon EC2 and extracts data from an Amazon RDS for MySQL DB instance.
CloudWatch metrics show high Read IOPS even when reports are not running. The CloudOps engineer must improve performance and availability. Which solution will meet these requirements?

1. A. Configure Amazon ElastiCache and query it for reports.
2. B. Deploy an RDS read replica and update the reporting job to query the reader endpoint.
3. C. Create a CloudFront distribution with the RDS instance as the origin.
4. D. Increase the size of the RDS instance.

Correct Answer: B

A company has created a new video-on-demand (VOD) application. The application runs on a fleet of Amazon EC2 instances behind an Application Load Balancer (ALB). The company configured an Amazon CloudFront distribution and set the ALB as the origin. Because of increasing application demand, the company wants to move all video files to a central Amazon S3 bucket.
A SysOps administrator needs to ensure that video files can be cached at edge locations after the company migrates the files to Amazon S3.
Which solution will meet this requirement?

1. A. Configure CloudFront to send the X-Forwarded-For header to the origin and to redirect video requests to Amazon S3 instead of the ALB.
2. B. Configure a new CloudFront cache behavior to route to Amazon S3 as a new origin, based on matching a URL path pattern.
3. C. Configure URL signing in the CloudFront distribution by using a custom polic
4. D. Ensure that video files are accessed through signed URLs only.
5. E. Configure a CloudFront origin grou
6. F. Specify the required HTTP status codes to direct connection attempts to a secondary origin.

Correct Answer: B

A company has an application running on EC2 that stores data in an Amazon RDS for MySQL Single-AZ DB instance. The application requires both read and write operations, and the company needs failover capability with minimal downtime.
Which solution will meet these requirements?

1. A. Modify the DB instance to be a Multi-AZ DB instance deployment.
2. B. Add a read replica in the same Availability Zone where the DB instance is deployed.
3. C. Add the DB instance to an Auto Scaling group that has a minimum capacity of 2 and a desired capacity of 2.
4. D. Use RDS Proxy to configure a proxy in front of the DB instance.

Correct Answer: A

An AWS Lambda function is intermittently failing several times a day. A CloudOps engineer must find out how often this error occurred in the last 7 days.
Which action will meet this requirement in the MOST operationally efficient manner?

1. A. Use Amazon Athena to query the Amazon CloudWatch logs that are associated with the Lambda function.
2. B. Use Amazon Athena to query the AWS CloudTrail logs that are associated with the Lambda function.
3. C. Use Amazon CloudWatch Logs Insights to query the associated Lambda function logs.
4. D. Use Amazon OpenSearch Service to stream the Amazon CloudWatch logs for the Lambda function.

Correct Answer: C

A CloudOps engineer has an AWS CloudFormation template of the company??s existing infrastructure in us-west-2. The CloudOps engineer attempts to use the template to launch a new stack in eu-west-1, but the stack partially deploys, receives an error message, and then rolls back.
Why would this template fail to deploy? (Select TWO.)

1. A. The template referenced an IAM user that is not available in eu-west-1.
2. B. The template referenced an Amazon Machine Image (AMI) that is not available in eu- west-1.
3. C. The template did not have the proper level of permissions to deploy the resources.
4. D. The template requested services that do not exist in eu-west-1.
5. E. CloudFormation templates can be used only to update existing services.

Correct Answer: BD