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Amazon DOP-C01 Practice Test - Questions Answers, Page 55

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Question 541

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How long are the messages kept on an SQS queue by default?

Question 542

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Question 543

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Question 544

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A company uses AWS Storage Gateway in file gateway mode in front of an Amazon S3 bucket that is used by multiple resources. In the morning when business begins, users do not see the objects processe

Question 545

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You run accounting software in the AWS cloud. This software needs to be online continuously during the day every day of the week, and has a very static requirement for compute resources. You also ha

Question 546

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You need to replicate API calls across two systems in real time. What tool should you use as a buffer and transport mechanism for API call events?

Question 547

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If you are trying to configure an AWS Elastic Beanstalk worker tier for easy debugging if there are problems finishing queue jobs, what should you configure?

Question 548

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You have an application which consists of EC2 instances in an Auto Scaling group. Between a particular time frame every day, there is an increase in traffic to your website. Hence users are complain

Question 549

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A DevOps engineer at a company is supporting an AWS environment in which all users use AWS Single Sign-On. The company wants to immediately disable credentials of any new IAM user and wants the secu

Question 550

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A DevOps Engineer has been asked to recommend a tool to deploy the components of a threetier web application. This application will use Amazon DynamoDB as a database Which deployment requires the LE

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?

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.)

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

An application running on a set of Amazon EC2 instances in an Auto Scaling group requires a configuration file to operate. The instances are created and maintained with AWS CloudFormation. A DevOps engineer wants the instances to have the latest configuration file when launched, and wants changes to the configuration file to be reflected on all the instances with a minimal delay when the CloudFormation template is updated. Company policy requires that application configuration files be maintained along with AWS infrastructure configuration files in source control. Which solution will accomplish this?

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?

Question 541

How long are the messages kept on an SQS queue by default?

If a message is not read, it is never deleted

2 weeks

1 day

4 days

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A company uses Amazon EC2 instances to host applications for its customers. Recently, the company’s support team has received EC2 scheduled maintenance notifications regarding its EC2 instances. The support team wants to automatically perform a restart of any EC2 instances with a scheduled maintenance event before the scheduled date. Which solution will meet these requirements while requiring the MINIMUM amount of development effort?

Create an AWS Systems Manager maintenance window with a Systems Manager Automation tast that uses the RebootInstnaces EC2 API operation to restart the affected EC2 instances. Attach the EC2 instances to the maintenance window. Configure AWS Health to invoke the maintenance window whenever a scheduledChange event for Amazon EC2 is generated.

Create an Amazon CloudWatch alarm for the StatusCheckFailed metric of each EC2 instance. Configure the CloudWatch alarm to recover any affected EC2 instance.

Create an Amazon EventBridge (Amazon CloudWatch Events) rule that matches scheduledChange events for Amazon EC2 from AWS Health. Configure the rule to run the AWS-RestartEC2Instance AWS Systems Manager Automation runbook.

Create an Amazon EventBridge (Amazon CloudWatch Events) rule that matches scheduledChange events for Amazon EC2 from AWS Health. Create an AWS Lambda function that uses the EC2 API to list all EC2 instances with scheduled events and then uses the RebootInstances EC2 API operation to restart the affected EC2 instances. Configure the EventBridge (CloudWatch Events) rule to invoke the Lambda function.

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Question 543

A DevOps engineer is deploying a new version of a company’s application in an AWS CodeDeploy deployment group associated with its Amazon EC2 instances. After some time, the deployment fails. The engineer realizes that all the events associated with the specific deployment ID are in a Skipped status, and code was not deployed in the instances associated with the deployment group. What are valid reasons for this failure? (Choose two.)

The networking configuration does not allow the EC2 instances to reach the internet via a NAT gateway or internet gateway, and the CodeDeploy endpoint cannot be reached.

The IAM user who triggered the application deployment does not have permission to interact with the CodeDeploy endpoint.

The target EC2 instances were not properly registered with the CodeDeploy endpoint.

An instance profile with proper permissions was not attached to the target EC2 instances.

The appspec.yml file was not included in the application revision.

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Question 544

A company uses AWS Storage Gateway in file gateway mode in front of an Amazon S3 bucket that is used by multiple resources. In the morning when business begins, users do not see the objects processed by a third party the previous evening. When a DevOps engineer looks directly at the S3 bucket, the data is there, but it is missing in Storage Gateway. Which solution ensures that all the updated third-party files are available in the morning?

Configure a nightly Amazon EventBridge (Amazon CloudWatch Events) event to trigger an AWS Lambda function to run the RefreshCache command for Storage Gateway.

Instruct the third party to put data into the S3 bucket using AWS Transfer for SFTP.

Modify Storage Gateway to run in volume gateway mode.

Use S3 same-Region replication to replicate any changes made directly in the S3 bucket to Storage Gateway.

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Question 545

You run accounting software in the AWS cloud. This software needs to be online continuously during the day every day of the week, and has a very static requirement for compute resources. You also have other, unrelated batch jobs that need to run once per day at any time of your choosing. How should you minimize cost?

Purchase a Heavy Utilization Reserved Instance to run the accounting software. Turn it off after hours. Run the batch jobs with the same instance class, so the Reserved Instance credits are also applied to the batch jobs.

Purchase a Medium Utilization Reserved Instance to run the accounting software. Turn it off after hours. Run the batch jobs with the same instance class, so the Reserved Instance credits are also applied to the batch jobs.

Purchase a Light Utilization Reserved Instance to run the accounting software. Turn it off after hours. Run the batch jobs with the same instance class, so the Reserved Instance credits are also applied to the batch jobs.

Purchase a Full Utilization Reserved Instance to run the accounting software. Turn it off after hours. Run the batch jobs with the same instance class, so the Reserved Instance credits are also applied to the batch jobs.

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Question 546

You need to replicate API calls across two systems in real time. What tool should you use as a buffer and transport mechanism for API call events?

AWS SQS

AWS Lambda

AWS Kinesis

AWS SNS

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Question 547

If you are trying to configure an AWS Elastic Beanstalk worker tier for easy debugging if there are problems finishing queue jobs, what should you configure?

Configure Rolling Deployments

Configure Enhanced Health Reporting

Configure Blue-Green Deployments

Configure a Dead Letter Queue

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Question 548

You have an application which consists of EC2 instances in an Auto Scaling group. Between a particular time frame every day, there is an increase in traffic to your website. Hence users are complaining of a poor response time on the application.

You have configured your Auto Scaling group to deploy one new EC2 instance when CPU utilization is greater than 60% for 2 consecutive periods of 5 minutes. What is the least cost-effective way to resolve this problem?

Decrease the consecutive number of collection periods

Increase the minimum number of instances in the Auto Scaling group

Decrease the collection period to ten minutes

Decrease the threshold CPU utilization percentage at which to deploy a new instance

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Question 549

A DevOps engineer at a company is supporting an AWS environment in which all users use AWS Single Sign-On. The company wants to immediately disable credentials of any new IAM user and wants the security team to receive a notification.

Which combination of steps should the DevOps engineer take to meet these requirements? (Choose three.)

Create an Amazon EventBridge (Amazon CloudWatch Events) rule that reacts to an IAM CreateUser API call in AWS CloudTrail.

Create an Amazon EventBridge (Amazon CloudWatch Events) rule that reacts to an IAM GetLoginProfile API call in AWS CloudTrail.

Create an AWS Lambda function that is a target of the EventBridge (CloudWatch Events) rule. Configure the Lambda function to disable any access keys and delete the login profiles that are associated with the IAM user.

Create an AWS Lambda function that is a target of the EventBridge (CloudWatch Events) rule. Configure the Lambda function to delete the login profiles that are associated with the IAM user.

Create an Amazon Simple Notification Service (Amazon SNS) topic that is a target of the EventBridge (CloudWatch Events) rule. Subscribe the security team’s group email address to the topic.

Create an Amazon Simple Queue Service (Amazon SQS) queue that is a target of the Lambda function. Subscribe the security team’s group email address to the queue.

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Question 550

A DevOps Engineer has been asked to recommend a tool to deploy the components of a threetier web application. This application will use Amazon DynamoDB as a database Which deployment requires the LEAST amount of operational management?

Use AWS CloudFormation to create a Classic Load Balancer and an Auto Scaling group. Use AWS OpsWorks to create the application and database resources Deploy application updates with OpsWorks using lifecycle events

Use AWS OpsWorks to create a Classic Load Balancer, an Auto Scaling group application, and database resources Deploy application updates using OpsWorks lifecycle events

Use AWS OpsWorks to create a Classic Load Balancer Auto Scaling and application resources Use AWS CloudFormation to create the database resources Deploy application updates using CloudFormation rolling updates

Use AWS CloudFormation to create a Classic Load Balancer an Auto Scaling group and database resources Deploy application updates using CloudFormation rolling updates

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