A DevOps Engineer Is Building a Continuous Deployment Pipeline for a Serverless

question 267

Multiple Choice

A DevOps Engineer is building a continuous deployment pipeline for a serverless application that uses AWS Lambda functions. The company wants to reduce the customer impact of an unsuccessful deployment. The company also wants to monitor for issues. Which deploy stage configuration will meet these requirements?

• A) Use AWS CloudFormation to publish a new stack update, and include Amazon CloudWatch alarms on all resources. Set up an AWS CodePipeline approval action for a developer to verify and approve the AWS CloudFormation change set.
• B) Use AWS CodeBuild to add sample event payloads for testing to the Lambda functions. Publish a new version of the functions, and include Amazon CloudWatch alarms. Update the production alias to point to the new version. Configure rollbacks to occur when an alarm is in the ALARM state.
• C) Use an AWS Serverless Application Model (AWS SAM) template to define the serverless application. Use AWS CodeDeploy to deploy the Lambda functions with the Canary10Percent15Minutes Deployment Preference Type. Use Amazon CloudWatch alarms to monitor the health of the functions.
• D) Use AWS CloudFormation to publish a new version on every stack update, and include Amazon CloudWatch alarms on all resources. Use the RoutingConfig property of the AWS::Lambda::Alias resource to update the traffic routing during the stack update.

---

Definitions:

Savings Method

A technique in psychology to measure the retention of learned material over time by assessing the amount of review required to relearn it.

False Positive

An error in data reporting in which a test result improperly indicates the presence of a condition (like a disease) when it is not actually present.

Eyewitnesses

Individuals who have directly seen an event or crime take place and can provide testimony about what they observed.

Testimony

An oral or written statement that a person gives based on their personal knowledge, experience, or observation, often used as evidence in courts.