Amazon DOP-C01 Practice Test - Questions Answers, Page 48

A company has a web application that uses an Amazon DynamoDB table in a single AWS Region to store user information. To support an increasingly global user base, the application must run in a secondary Region and allow users to connect to their closest Region and fail over to the secondary Region. Which approach should be used to ensure the deployment meets these requirements?

An e-commerce company is running a web application in an AWS Elastic Beanstalk environment. In recent months, the average load of the Amazon EC2 instances has been increased to handle more traffic. The company would like to improve the scalability and resilience of the environment. The Development team has been asked to decouple long-running tasks from the environment if the tasks can be executed asynchronously. Examples of these tasks include confirmation emails when users are registered to the platform, and processing images or videos. Also, some of the periodic tasks that are currently running within the web server should be offloaded. What is the MOST time-efficient and integrated way to achieve this?

A retail company is currently hosting a Java-based application on its on-premises data center. Management wants the DevOps Engineer to move this application to AWS. Requirements state that while keeping high availability, infrastructure management should be as simple as possible. Also, during deployments of new application versions, while cost is an important metric, the Engineer needs to ensure that at least half of the fleet is available to handle user traffic. What option requires the LEAST amount of management overhead to meet these requirements?

You want to build an application that coordinates work across distributed components, and you find Amazon Simple Workflow Service (Amazon SWF) does this easily. You have enabled logging in CloudTrail, but you are unsure about Amazon SWF actions supported.

Which of the following actions is NOT supported?

A DevOps Engineer needs to deploy a scalable three-tier Node.js application in AWS. The application must have zero downtime during deployments and be able to roll back to previous versions. Other applications will also connect to the same MySQL backend database. The CIO has provided the following guidance for logging:

Centrally view all current web access server logs.

Search and filter web and application logs in near-real time. Retain log data for three months.

How should these requirements be met?

A company using AWS CodeCommit for source control wants to automate its continuous integration and continuous delivery pipeline on AWS in its development environment. The company has three requirements:

A DevOps Engineer needs to design and implement a backup mechanism for Amazon EFS. The Engineer is given the following requirements: The backup should run on schedule. The backup should be stopped if the backup window expires.

The backup should be stopped if the backup completes before the backup window.

The backup logs should be retained for further analysis.

The design should support highly available and fault-tolerant paradigms. Administrators should be notified with backup metadata. Which design will meet these requirements?

What is the maximum time messages can be stored in SQS?

You have been asked to de-risk deployments at your company. Specifically, the CEO is concerned about outages that occur because of accidental inconsistencies between Staging and Production, which sometimes cause unexpected behaviors in Production even when Staging tests pass. You already use Docker to get high consistency between Staging and Production for the application environment on your EC2 instances. How do you further de-risk the rest of the execution environment, since in AWS, there are many service components you may use beyond EC2 virtual machines?