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

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Question 241

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Which major database needs a BYO license?

PostgreSQL
PostgreSQL
MariaDB
MariaDB
MySQL
MySQL
Oracle
Oracle
Suggested answer: D

Explanation:

Oracle is not open source, and requires a bring your own license model.

Reference: http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_Oracle.html

asked 16/09/2024
Sathish M
48 questions

Question 242

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What is server immutability?

Not updating a server after creation.
Not updating a server after creation.
The ability to change server counts.
The ability to change server counts.
Updating a server after creation.
Updating a server after creation.
The inability to change server counts.
The inability to change server counts.
Suggested answer: A

Explanation:

... disposable upgrades offer a simpler way to know if your application has unknown dependencies. The underlying EC2 instance usage is considered temporary or ephemeral in nature for the period of deployment until the current release is active. During the new release, a new set of EC2 instances are rolled out by terminating older instances. This type of upgrade technique is more common in an immutable infrastructure.

Reference:

https://d0.awsstatic.com/whitepapers/overview-of-deployment-options-on-aws.pdf

asked 16/09/2024
L Zsolt
38 questions

Question 243

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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.
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.
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.
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 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.
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.
Suggested answer: B
asked 16/09/2024
Jarrad Payne
36 questions

Question 244

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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 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, 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, 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.
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.
Suggested answer: C
asked 16/09/2024
Marcin Weglarski
38 questions

Question 245

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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.
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.
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.
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.
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.
Suggested answer: B

Explanation:

Reference: https://aws.amazon.com/answers/configuration-management/aws-infrastructure-configuration-management/

asked 16/09/2024
Ricardo de Sá Carvalho
38 questions

Question 246

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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 source account.
Create a replication IAM role in the target 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 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.
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 source bucket to enable the replication.
Create a replication rule in the target bucket to enable the replication.
Create a replication rule in the target bucket to enable the replication.
Suggested answer: A, D, F
asked 16/09/2024
Rostyslav Skrypnyk
48 questions

Question 247

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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 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.
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.
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.
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.
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.
Suggested answer: C
asked 16/09/2024
Janina Loveria
39 questions

Question 248

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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.
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.
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.
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.
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.
Suggested answer: A
asked 16/09/2024
Wilson Sigcha
31 questions

Question 249

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

VOLUME
VOLUME
USER
USER
ADD
ADD
CMD
CMD
Suggested answer: C

Explanation:

When a developer builds an image from a Dockerfile or when she commits it, the developer can set a number of default parameters that take effect when the image starts up as a container. Four of the Dockerfile commands cannot be overridden at runtime: FROM, MAINTAINER, RUN, and ADD. Everything else has a corresponding override in docker run. We'll go through what the developer might have set in each Dockerfile instruction and how the operator can override that setting.

Reference:

https://docs.docker.com/engine/reference/run/#overriding-dockerfile-image-defaults

asked 16/09/2024
Joseph Washington
42 questions

Question 250

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

Explanation:

Reference: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-fleet-configuration-strategies.html

asked 16/09/2024
Nick Sheremet
24 questions
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