Home / Amazon / DOP-C01

Amazon DOP-C01 Practice Test - Questions Answers, Page 25

Question list

List of questions

Question 241

(0)

Which major database needs a BYO license?

Question 242

(0)

What is server immutability?

Question 243

(0)

You recently encountered a major bug in your Windows-based web application during a deployment cycle. During this failed deployment, it took the team four hours to roll back to a previously working

Question 244

(0)

For auditing, analytics, and troubleshooting purposes, a DevOps Engineer for a data analytics application needs to collect all of the application and Linux system logs from the Amazon EC2 instances

Question 245

(0)

A company has established tagging and configuration standards for its infrastructure resources running on AWS. A DevOps Engineer is developing a design that will provide a near-real-time dashboard o

Question 246

(0)

A DevOps Engineer needs to back up sensitive Amazon S3 objects that are stored within an S3 bucket with a private bucket policy using the S3 cross-region replication functionality. The objects need

Question 247

(0)

Your current log analysis application takes more than four hours to generate a report of the top 10 users of your web application. You have been asked to implement a system that can report this info

Question 248

(0)

A company is using Docker containers for an application deployment and wants to move its application to AWS. The company currently manages its own clusters on premises to manage the deployment of th

Question 249

(0)

Which of the following Dockerfile commands cannot be overridden at runtime?

Question 250

(0)

A company maintains a stateless web application that is experiencing inconsistent traffic. The company uses AWS CloudFormation to deploy the application. The application runs on Amazon EC2 OnDemand

Related questions

Which of these is not an instrinsic function in AWS CloudFormation?

After a daily scrum with your development teams, you've agreed that using Blue/Green style deployments would benefit the team. Which technique should you use to deliver this new requirement?

An application has microservices spread across different AWS accounts and is integrated with an on-premises legacy system for some of its functionality. Because of the segmented architecture and missing logs, every time the application experiences issues, it is taking too long to gather the logs to identify the issues. A DevOps Engineer must fix the log aggregation process and provide a way to centrally analyze the logs. Which is the MOST efficient and cost-effective solution?

For AWS Auto Scaling, what is the first transition state an existing instance enters after leaving steady state in Standby mode?

A DevOps Engineer must create a Linux AMI in an automated fashion. The newly created AMI identification must be stored in a location where other build pipelines can access the new identification programmatically What is the MOST cost-effective way to do this?

A company hosts parts of a Python-based application using AWS Elastic Beanstalk. An Elastic Beanstalk CLI is being used to create and update the environments. The Operations team detected an increase in requests in one of the Elastic Beanstalk environments that caused downtime overnight. The team noted that the policy used for AWS Auto Scaling is NetworkOut. Based on load testing metrics, the team determined that the application needs to scale CPU utilization to improve the resilience of the environments. The team wants to implement this across all environments automatically. Following AWS recommendations, how should this automation be implemented?

If you want CloudFormation stack status updates to show up in a continuous delivery system in as close to real time as possible, how should you achieve this?

A company updated the AWS CloudFormation template for a critical business application. The stack update process failed due to an error in the updated template, and AWS CloudFormation automatically began the stack rollback process. Later, a DevOps engineer discovered that the application was still unavailable and that the stack was in the UPDATE_ROLLBACK_FAILED state. Which combination of actions should the DevOps engineer perform so that the stack rollback can complete successfully? (Choose two.)

You have an application running on an Amazon EC2 instance and you are using IAM roles to securely access AWS Service APIs. How can you configure your application running on that instance to retrieve the API keys for use with the AWS SDKs?

A company has a web application that uses AWS Elastic Beanstalk, Amazon S3, and Amazon DynamoDB to develop a web application. The web application has increased dramatically in popularity, resulting in unpredictable spikes in traffic. A DevOps Engineer has noted that 90% of the requests are duplicate read requests to the DynamoDB table and the images stored in an S3 bucket. How can the Engineer improve the performance of the website?

Question 241

Which major database needs a BYO license?

PostgreSQL

MariaDB

MySQL

Oracle

Show Answer Comment (0)

Question 242

What is server immutability?

Not updating a server after creation.

The ability to change server counts.

Updating a server after creation.

The inability to change server counts.

Show Answer Comment (0)

You recently encountered a major bug in your Windows-based web application during a deployment cycle. During this failed deployment, it took the team four hours to roll back to a previously working state, which left customers with a poor user experience. During the post-mortem, your team discussed the need to provide a quicker way to roll back failed deployments. You currently run your web application on Amazon EC2 using Windows 2012R2 and use Elastic Load Balancing for your load balancing needs. Which technique should you use to solve this problem?

Create deployable versioned bundles of your application. Store the bundles on Amazon S3. Re-deploy your web application on Elastic Beanstalk, and enable the Elastic Beanstalk autorollback feature tied to CloudWatch metrics that define failure.

Re-deploy your web application using an AWS OpsWorks stack, and use the AWS OpsWorks auto-rollback feature to initiate a rollback during failures.

Create deployable versioned bundles of your application. Store the bundle on Amazon S3. Re-deploy your web application using an AWS OpsWorks stack, and use AWS OpsWorks application versioning to initiate a rollback during failures.

Re-deploy your web application using Elastic Beanstalk, and use the Elastic Beanstalk application versions when deploying. During failures, re-deploy the previous version to the Elastic Beanstalk environment.

Re-deploy your web application using Elastic Beanstalk, and use the Elastic Beanstalk API to trigger a FailedDeployment API call to initiate a rollback to the previous version.

Show Answer Comment (0)

Question 244

For auditing, analytics, and troubleshooting purposes, a DevOps Engineer for a data analytics application needs to collect all of the application and Linux system logs from the Amazon EC2 instances before termination. The company, on average, runs 10,000 instances in an Auto Scaling group. The company requires the ability to quickly find logs based on instance IDs and date ranges. Which is the MOST cost-effective solution?

Create an EC2 Instance-terminate Lifecycle Action on the group, write a termination script for pushing logs into Amazon S3, and trigger an AWS Lambda function based on S3 PUT to create a catalog of log files in an Amazon DynamoDB table with the primary key being Instance ID and sort key being Instance Termination Date.

Create an EC2 Instance-terminate Lifecycle Action on the group, write a termination script for pushing logs into Amazon CloudWatch Logs, create a CloudWatch Events rule to trigger an AWS Lambda function to create a catalog of log files in an Amazon DynamoDB table with the primary key being Instance ID and sort key being Instance Termination Date.

Create an EC2 Instance-terminate Lifecycle Action on the group, create an Amazon CloudWatch Events rule based on it to trigger an AWS Lambda function for storing the logs in Amazon S3, and create a catalog of log files in an Amazon DynamoDB table with the primary key being Instance ID and sort key being Instance Termination Date.

Create an EC2 Instance-terminate Lifecycle Action on the group, push the logs into Amazon Kinesis Data Firehose, and select Amazon ES as the destination for providing storage and search capability.

Show Answer Comment (0)

Question 245

A company has established tagging and configuration standards for its infrastructure resources running on AWS. A DevOps Engineer is developing a design that will provide a near-real-time dashboard of the compliance posture with the ability to highlight violations.

Which approach meets the stated requirements?

Define the resource configurations in AWS Service Catalog, and monitor the AWS Service Catalog compliance and violations in Amazon CloudWatch. Then, set up and share a live CloudWatch dashboard. Set up Amazon SNS notifications for violations and corrections.

Use AWS Config to record configuration changes and output the data to an Amazon S3 bucket. Create an Amazon QuickSight analysis of the dataset, and use the information on dashboards and mobile devices.

Create a resource group that displays resources with the specified tags and those without tags. Use the AWS Management Console to view compliant and non-compliant resources.

Define the compliance and tagging requirements in Amazon Inspector. Output the results to Amazon CloudWatch Logs. Build a metric filter to isolate the monitored elements of interest and present the data in a CloudWatch dashboard.

Show Answer Comment (0)

Question 246

A DevOps Engineer needs to back up sensitive Amazon S3 objects that are stored within an S3 bucket with a private bucket policy using the S3 cross-region replication functionality. The objects need to be copied to a target bucket in a different AWS Region and account.

Which actions should be performed to enable this replication? (Choose three.)

Create a replication IAM role in the source account.

Create a replication IAM role in the target account.

Add statements to the source bucket policy allowing the replication IAM role to replicate objects.

Add statements to the target bucket policy allowing the replication IAM role to replicate objects.

Create a replication rule in the source bucket to enable the replication.

Create a replication rule in the target bucket to enable the replication.

Show Answer Comment (0)

Question 247

Your current log analysis application takes more than four hours to generate a report of the top 10 users of your web application. You have been asked to implement a system that can report this information in real time, ensure that the report is always up to date, and handle increases in the number of requests to your web application. Choose the option that is costeffective and can fulfill the requirements.

Publish your data to CloudWatch Logs, and configure your application to autoscale to handle the load on demand.

Publish your log data to an Amazon S3 bucket. Use AWS CloudFormation to create an Auto Scaling group to scale your post-processing application which is configured to pull down your log files stored an Amazon S3.

Post your log data to an Amazon Kinesis data stream, and subscribe your log-processing application so that is configured to process your logging data.

Configure an Auto Scaling group to increase the size of your Amazon EMR duster.

Create a multi-AZ Amazon RDS MySQL cluster, post the logging data to MySQL, and run a map reduce job to retrieve the required information on user counts.

Show Answer Comment (0)

Question 248

A company is using Docker containers for an application deployment and wants to move its application to AWS. The company currently manages its own clusters on premises to manage the deployment of these containers. It wants to deploy its application to a managed service in AWS and wants the entire flow of the deployment process to be automated. In addition, the company has the following requirements:

Focus first on the development workload.

The environment must be easy to manage.

Deployment should be repeatable and reusable for new environments. Store the code in a GitHub repository. Which solution will meet these requirements?

Set up an Amazon ECS environment. Use AWS CodePipeline to create a pipeline that is triggered on a commit to the GitHub repository. Use AWS CodeBuild to create the container images and AWS CodeDeploy to publish the container image to the ECS environment.

Use AWS CodePipeline that triggers on a commit from the GitHub repository, build the container images with AWS CodeBuild, and publish the container images to Amazon ECR. In the final stage, use AWS CloudFormation to create an Amazon ECS environment that gets the container images from the ECR repository.

Create a Kubernetes Cluster on Amazon EC2. Use AWS CodePipeline to create a pipeline that is triggered when the code is committed to the repository. Create the container images with a Jenkins server on EC2 and store them in the Docker Hub. Use AWS Lambda from the pipeline to trigger the deployment to the Kubernetes Cluster.

Set up an Amazon ECS environment. Use AWS CodePipeline to create a pipeline that is triggered on a commit to the GitHub repository. Use AWS CodeBuild to create the container and store it in the Docker Hub. Use an AWS Lambda function to trigger a deployment and pull the new container image from the Docker Hub.

Show Answer Comment (0)

Question 249

Which of the following Dockerfile commands cannot be overridden at runtime?

VOLUME

USER

ADD

CMD

Show Answer Comment (0)

Question 250

A company maintains a stateless web application that is experiencing inconsistent traffic. The company uses AWS CloudFormation to deploy the application. The application runs on Amazon EC2 OnDemand Instances behind an Application Load Balancer (ALB). The instances run across multiple Availability Zones.

The company wants to include the use of Spot Instances while continuing to use a small number of On-Demand Instances to ensure that the application remains highly available. What is the MOST cost-effective solution that meets these requirements?

Add a Spot block resource to the AWS CloudFormation template. Use the diversified allocation strategy with step scaling behind the ALB.

Add a Spot block resource to the AWS CloudFormation template. Use the lowest-price allocation strategy with target tracking scaling behind the ALB.

Add a Spot Fleet resource to the AWS CloudFormation template. Use the capacity-optimized allocation strategy with step scaling behind the ALB.

Add a Spot Fleet resource to the AWS CloudFormation template. Use the diversified allocation strategy with scheduled scaling behind the ALB.

Show Answer Comment (0)

Total 557 questions

23 24 25 26 27

Go to page: of 56