Amazon DOP-C02 Practice Questions - Page 25

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Question 241

A company is implementing a well-architected design for its globally accessible API stack. The design needs to ensure both high reliability and fast response times for users located in North America and Europe.

The API stack contains the following three tiers:

- Amazon API Gateway

- AWS Lambda

- Amazon DynamoDB

hich solution will meet the requirements?

Configure Amazon Route 53 to point to API Gateway APIs in North America and Europe using health checks. Configure the APIs to forward requests to a Lambda function in that Region. Configure the Lambda functions to retrieve and update the data in a DynamoDB table in the same Region as the Lambda function.

Configure Amazon Route 53 to point to API Gateway APIs in North America and Europe using latency-based routing and health checks. Configure the APIs to forward requests to a Lambda function in that Region. Configure the Lambda functions to retrieve and update the data in a DynamoDB global table.

Configure Amazon Route 53 to point to API Gateway in North America, create a disaster recovery API in Europe, and configure both APIs to forward requests to the Lambda functions in that Region. Retrieve the data from a DynamoDB global table. Deploy a Lambda function to check the North America API health every 5 minutes. In the event of a failure, update Route 53 to point to the disaster recovery API.

Configure Amazon Route 53 to point to API Gateway API in North America using latency-based routing. Configure the API to forward requests to the Lambda function in the Region nearest to the user. Configure the Lambda function to retrieve and update the data in a DynamoDB table.

Question 242

A company wants to migrate its content sharing web application hosted on Amazon EC2 to a serverless architecture. The company currently deploys changes to its application by creating a new Auto Scaling group of EC2 instances and a new Elastic Load Balancer, and then shifting the traffic away using an Amazon Route 53 weighted routing policy.

For its new serverless application, the company is planning to use Amazon API Gateway and AWS Lambda. The company will need to update its deployment processes to work with the new application. It will also need to retain the ability to test new features on a small number of users before rolling the features out to the entire user base.

Which deployment strategy will meet these requirements?

Use AWS CDK to deploy API Gateway and Lambda functions. When code needs to be changed, update the AWS CloudFormation stack and deploy the new version of the APIs and Lambda functions. Use a Route 53 failover routing policy for the canary release strategy.

Use AWS CloudFormation to deploy API Gateway and Lambda functions using Lambda function versions. When code needs to be changed, update the CloudFormation stack with the new Lambda code and update the API versions using a canary release strategy. Promote the new version when testing is complete.

Use AWS Elastic Beanstalk to deploy API Gateway and Lambda functions. When code needs to be changed, delpoy a new version of the API and Lambda functions. Shift traffic gradually using an Elastic Beanstalk blue/green deployment.

Use AWS OpsWorks to deploy API Gateway in the service layer and Lambda functions in a custom layer. When code needs to be changed, use OpsWorks to perform a blue/green deployment and shift traffic gradually.

Question 243

After a recent audit, a company decided to implement a new disaster recovery strategy for its Amazon S3 data and its MySQL database running on Amazon EC2.

Management wants the ability to recover to a secondary AWS Region with an RPO under 5 seconds and an RTO under 1 minute.

Which actions will meet the requirements while MINIMIZING operational overhead? (Choose two.)

Select all that apply

Modify the application to write to both Regions at the same time when uploading objects to Amazon S3.

Migrate the database to an Amazon Aurora multi-master in the primary and secondary Regions.

Migrate the database to Amazon RDS with a read replica in the secondary Region.

Migrate to Amazon Aurora Global Database.

Set up S3 cross-Region replication with a replication SLA for the S3 buckets where objects are being put.

Question 244

A DevOps engineer is scheduling legacy AWS KMS keys for deletion and has created a remediation AWS Lambda function that will re-enable a key if necessary.

The engineer wants to automate this process with available AWS CloudTrail data so, if a key scheduled for deletion is in use, it will be re-enabled.

Which solution enables this automation?

Create an Amazon CloudWatch Logs metric filter and alarm for KMS events with an error message. Set the remediation Lambda function as the target of the alarm.

Create an Amazon CloudWatch Logs metric filter and alarm for KMS events with an error message. Create an Amazon SNS topic as the target of the alarm. Subscribe the remediation Lambda function to the SNS topic.

Create an Amazon CloudWatch Events rule pattern looking for KMS service events with an error message. Create an Amazon SNS topic as the target of the rule. Subscribe the remediation Lambda function to the SNS topic.

Use Amazon CloudTrail to alert for KMS service events with an error message. Set the remediation Lambda function as the target of the rule.

Question 245

A DevOps engineer is building a centralized CI/CD pipeline using AWS CodeBuild, AWS CodeDeploy, and Amazon S3. The engineer is required to have least privilege access and individual encryption at rest for all artifacts in Amazon S3. The engineer must be able to prune old artifacts without the ability to download or read them.

The engineer has already completed the following steps:

1. Created a unique AWS Key Management Service (AWS KMS) CMK and S3 bucket for each projectג€™s builds.

2. Updated the S3 bucket policy to only allow uploads that use the associated KMS encryption.

Which final step should be taken to meet these requirements?

Update the attached IAM policies to allow access to the appropriate KMS key from the CodeDeploy role where the application will be deployed.

Update the attached IAM policies to allow access to the appropriate KMS key from the EC2 instance roles where the application will be deployed.

Update the CMKג€™s key policy to allow access to the appropriate KMS key from the CodeDeploy role where the application will be deployed.

Update the CMKג€™s key policy to allow access to the appropriate KMS key from the EC2 instance roles where the application will be deployed.

Question 246

A DevOps engineer is designing a multi-Region disaster recovery strategy for an application requiring an RPO of 1 hour and RTO of 4 hours. The application is deployed with an AWS CloudFormation template that creates an Application Load Balancer, Amazon EC2 instances in an Auto Scaling group, and an Amazon

RDS Multi-AZ DB instance with 20 GB of allocated storage. The AMI of the application instance does not contain data and has been copied to the destination Region.

Which combination of actions will satisfy the recovery objectives at the LOWEST cost? (Choose two.)

Select all that apply

Launch an RDS DB instance in the failover Region and use AWS DMS to configure ongoing replication from the source database.

Schedule an AWS Lambda function to take a snapshot of the database every hour and copy the snapshot to the failover Region.

Upon failover, update the CloudFormation stack in the failover Region to update the Auto Scaling group from one running instance to the desired number of instances. When the stack update is complete, change the DNS records to point to the failover Regionג€™s Elastic Load Balancer.

Upon failover, launch the CloudFormation template in the failover Region with the snapshot ID as an input parameter. When the stack creation is complete, change the DNS records to point to the failover Regionג€™s Elastic Load Balancer.

Utilizing the build-in RDS automated backups, set up an event with Amazon CloudWatch Events that triggers an AWS Lambda function to copy the snapshot to the failover Region.

Question 247

After a data leakage incident that led to thousands of stolen user profiles, a compliance officer is demanding automatic, auditable security policy checks for all of the company's data stores, starting with public access of Amazon S3 buckets.

Which solution will accomplish this with the LEAST amount of effort?

Create a custom rule in AWS Config triggered by an S3 bucket configuration change that detects when the bucket policy or bucket ACL allows public read access. Use a remediation action to trigger an AWS Lambda function that automatically disables public access.

Create a custom rule in AWS Config triggered by an S3 bucket configuration change that detects when the bucket policy or bucket ACL allows public read access. Trigger an AWS Lambda function that automatically disables public access.

Use a managed rule in AWS Config triggered by an S3 bucket configuration change that detects when the bucket policy or bucket ACL allows public read access. Configure a remediation action that automatically disables public access.

Use a managed rule in AWS Config triggered by an S3 bucket configuration change that detects when the bucket policy or bucket ACL allows public read access. Configure an AWS Lambda function that automatically disables public access.

Question 248

A company uses AWS KMS with CMKs and manual key rotation to meet regulatory compliance requirements. The security team wants to be notified when any keys have not been rotated after 90 days.

Which solution will accomplish this?

Configure AWS KMS to publish to an Amazon SNS topic when keys are more than 90 days old.

Configure an Amazon CloudWatch Events event to launch an AWS Lambda function to call the AWS Trusted Advisor API and publish to an Amazon SNS topic.

Develop an AWS Config custom rule that publishes to an Amazon SNS topic when keys are more than 90 days old.

Configure AWS Security Hub to publish to an Amazon SNS topic when keys are more than 90 days old.

Question 249

A company develops and maintains a web application using Amazon EC2 instances and an Amazon RDS for SQL Server DB instance in a single Availability Zone. The resources need to run only when new deployments are being tested using AWS CodePipeline. Testing occurs one or more times a week and each test takes 2-3 hours to run. A DevOps engineer wants a solution that does not change the architecture components.

Which solution will meet these requirements in the MOST cost-effective manner?

Convert the RDS database to an Amazon Aurora Serverless database. Use an AWS Lambda function to start and stop the EC2 instances before and after tests.

Put the EC2 instances into an Auto Scaling group. Schedule scaling to run at the start of the deployment tests.

Replace the EC2 instances with EC2 Spot Instances and the RDS database with an RDS Reserved Instance.

Subscribe Amazon Cloud Watch Events to CodePipeline to trigger AWS Systems Manager Automation documents that start and stop all EC2 and RDS instances before and after deployment tests.

Question 250

A company is using AWS CodePipeline to automate its release pipeline. AWS CodeDeploy is being used in the pipeline to deploy an application to Amazon ECS using the blue/green deployment model. The company wants to implement scripts to test the green version of the application before shifting traffic. These scripts will complete in 5 minutes or less. If errors are discovered during these tests, the application must be rolled back.

Which strategy will meet these requirements?

Add a stage to the CodePipeline pipeline between the source and deploy stages. Use AWS CodeBuild to create an execution environment and build commands in the buildspec file to invoke test scripts. If errors are found, use the aws deploy stop-deployment command to stop the deployment.

Add a stage to the CodePipeline pipeline between the source and deploy stages. Use this stage to execute an AWS Lambda function that will run the test scripts. If errors are found, use the aws deploy stop-deployment command to stop the deployment.

Add a hooks section to the CodeDeploy AppSpec file. Use the AfterAllowTestTraffic lifecycle event to invoke an AWS Lambda function to run the test scripts. If errors are found, exit the Lambda function with an error to trigger rollback.

Add a hooks section to the CodeDeploy AppSpec file. Use the AfterAllowTraffic lifecycle event to invoke the test scripts. If errors are found, use the aws deploy stop-deployment CLI command to stop the deployment.

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