AWS DevOps DevOps Monitoring, Testing & Deployment Strategies 2

Question 1

Which AWS service allows you to define alarms that automatically roll back a CodeDeploy deployment when a CloudWatch metric breaches a threshold?

Accepted Answer

CloudWatch Alarms with CodeDeploy rollback triggers

Answer

CodeDeploy supports automatic rollback when a CloudWatch Alarm you associate with the deployment group enters the ALARM state.

Question 2

In a canary deployment on AWS Lambda using CodeDeploy, what does the 'Canary10Percent5Minutes' configuration mean?

Accepted Answer

10% of traffic shifts immediately, remaining 90% shifts after 5 minutes

Answer

Canary10Percent5Minutes shifts 10% of traffic to the new version immediately, waits 5 minutes, then shifts the remaining 90%.

Question 3

Which X-Ray feature helps identify the slowest components in a distributed application by visualizing latency across service calls?

Accepted Answer

Service map with latency histograms

Answer

X-Ray service maps display response time distributions and highlight high-latency nodes across microservice calls.

Question 4

When running integration tests in CodePipeline, which action provider lets you invoke an AWS Lambda function as a test step?

Accepted Answer

AWS Lambda invoke action

Answer

CodePipeline's Lambda invoke action lets you call a Lambda function directly as a pipeline action, returning success or failure to the pipeline.

Question 5

A team wants zero-downtime deployments for an ECS Fargate service. Which deployment controller type achieves this using weighted target groups?

Accepted Answer

CODE_DEPLOY with blue/green

Answer

CODE_DEPLOY deployment controller for ECS uses two target groups with weighted routing to shift traffic with zero downtime.

AWS Practice Test