Free Amazon DOP-C02 Exam Questions

Question 1

A developer is using the AWS Serverless Application Model (AWS SAM) to create a prototype for an AWS Lambda function. The AWS SAM template contains an AWS::Serverless::Function resource that has the CodeUri property that points to an Amazon S3 location. The developer wants to identify the correct commands for deployment before creating a CI/CD pipeline.

The developer creates an archive of the Lambda function code named package.zip. The developer uploads the .zip file archive to the S3 location specified in the CodeUri property. The developer runs the sam deploy command and deploys the Lambda function. The developer updates the Lambda function code and uses the same steps to deploy the new version of the Lambda function. The sam deploy command fails and returns an error of no changes to deploy.

Which solutions will deploy the new version? (Choose two.)

A : Use the aws cloudformation update-stack command instead of the sam deploy command.

B : Use the aws cloudformation update-stack-instances command instead of the sam deploy command.

C : Update the CodeUri property to reference the local application code folder. Use the sam deploy command.

D : . Update the CodeUri property to reference the local application code folder. Use the aws cloudformation create-change-set command and the aws cloudformation execute-change-set command.

E : Update the CodeUri property to reference the local application code folder. Use the aws cloudformation package command and the aws cloudformation deploy command.

Answer: C,E

Question 2

You have developed an app that lets users quickly upload and share image snippets across various platforms such as mobile app, desktop web browser, and third party instant messaging apps. Your app relies on a Lambda function that detects each request’s User-Agent and automatically sends a corresponding image resolution based on the device. You want to have a consistent and fast experience for all your users around the world.

Which of the following options will you implement?

A : load your function on S3 and set it as CloudFront origin to run it.

B : ploy your function on Amazon API Gateway and set up an Edge-optimized API endpoint.

C : eate your function on Lambda and deploy it with Lambda@Edge.

D : eate your function on AWS Lambda and set it as a CloudFront origin.

Answer: C

Question 3

A company is developing a web application that runs on Amazon EC2 Linux instances. The application requires monitoring of custom performance metrics. The company must collect metrics for API response times and database query latency across multiple instances. Which solution will generate the custom metrics with the LEAST operational overhead?

A : Install the Amazon CloudWatch agent on the instances. Configure the agent to collect the custom metrics. Instrument the application to send the metrics to the agent.

B : Use Amazon Managed Service for Prometheus to scrape the custom metrics from the application. Use the Amazon CloudWatch agent to forward the metrics to CloudWatch.

C : Create a custom AWS Lambda function that polls the application endpoints and database at regular intervals. Program the Lambda function to calculate the custom metrics and to send the metrics to Amazon CloudWatch by using PutMetricData API calls.

D : Implement custom logging in the application code to record the custom metrics. Use Amazon CloudWatch Logs Insights to extract and analyze the metrics.

Answer: A

Question 4

A DevOps engineer needs a resilient CI/CD pipeline that builds container images, stores them in ECR, scans images for vulnerabilities, and is resilient to outages in upstream source image repositories. Which solution meets this?

A : Create a private ECR repo, scan images on push, replicate images from upstream repos with a replication rule.

B : Create a private ECR repo, scan images on push, replicate images from upstream repos with a replication rule

C : Create a public ECR repo, configure a pull-through cache rule, create a private repo to store images, enable basic scanning.

D : Create a private ECR repo, enable basic scanning, create a pull-through cache rule.

Answer: D

Question 5

A SaaS company uses ECS (Fargate) behind an ALB and CodePipeline + CodeDeploy for blue/green deployments. They need automatic, incremental traffic shifting over time with no downtime. Which solution will meet these requirements?

A : Use TimeBasedLinear in appspec.yaml with defined percentage and interval.

B : Use AllAtOnce deployment configuration.

C : Use TimeBasedCanary.

D : Configure weighted routing on ALB manually.

Answer: A