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Amazon DOP-C01 Practice Test - Questions Answers, Page 47

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Question 461

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An ecommerce company is running an application on AWS. The company wants to create a standby disaster recovery solution in an additional Region that keeps the current application code. The application runs on Amazon EC2 instances behind an Application Load Balancer (ALB). The instances run in an EC2 Auto Scaling group across multiple Availability Zones. The database layer is hosted on an Amazon RDS MySQL Multi-AZ DB instance. Amazon Route 53 DNS records point to the ALB. Which combination of actions will meet these requirements with the LOWEST cost? (Choose three.)

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Question 462

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When building a Docker image, you are searching through a persistent data volume's logs to provide parameters for the next build. You execute the following command. Which of the operations will cause a failure of the Docker RUNcommand? RUN cat ./data/log/*.error | grep service_status | grep ERROR

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Question 463

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What is the scope of an EBS snapshot?

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Question 464

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A legacy web application stores access logs in a proprietary text format. One of the security requirements is to search application access events and correlate them with access data from many different systems. These searches should be near-real time.

Which solution offloads the processing load on the application server and provides a mechanism to search the data in nearreal time?

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Question 465

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Which Auto Scaling process would be helpful when testing new instances before sending traffic to them, while still keeping them in your Auto Scaling Group?

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Question 466

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When thinking of AWS Elastic Beanstalk's model, which is true?

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Question 467

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An IT team has built an AWS CloudFormation template so others in the company can quickly and reliably deploy and terminate an application. The template creates an Amazon EC2 instance with a user data script to install the application and an Amazon S3 bucket that the application uses to serve static webpages while it is running.

All resources should be removed when the CloudFormation stack is deleted. However, the team observes that CloudFormation reports an error during stack deletion, and the S3 bucket created by the stack is not deleted. How can the team resolve the error in the MOST efficient manner to ensure that all resources are deleted without errors?

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Question 468

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A DevOps Engineer is researching the least-expensive way to implement an image batch processing cluster in AWS. The application cannot run in Docker containers and must run on Amazon EC2. The batch job stores checkpoint data on a Network File System (NFS) and can tolerate interruptions. Configuring the cluster software from a generic EC2 Linux image takes 30 minutes. Which is the MOST cost-effective solution?

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Question 469

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Your company currently runs a large multi-tier web application. One component is an API service that all other components of your application rely on to perform read/write operations. This service must have high availability and zero downtime during deployments.

Which technique should you use to provide cost-effective, zero-downtime deployments for this component?

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Question 470

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A company’s application development team uses Linux-based Amazon EC2 instances as bastion hosts. Inbound SSH access to the bastion hosts is restricted to specific IP addresses, as defined in the associated security groups. The company’s security team wants to receive a notification if the security group rules are modified to allow SSH access from any IP address. What should a DevOps engineer do to meet this requirement?

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