Amazon DOP-C01 Practice Test - Questions Answers, Page 40

You run a small online consignment marketplace. Interested sellers complete an online application in order to allow them to sell their products on your website. Once approved, they can post their product using a custom interface. From that pant, you manage the shopping cart process so that when a buyer decides to buy a product, you handle the billing and coordinate the shipping. Part of this process requires sending emails to the buyer and the seller at different stages. Your system has been running on AWS for a few months. Occasionally, products are shipped before payment cleared and emails are sent out of order. Furthermore, sometimes credit cards are being charged twice. How can you resolve these problems?

You have written a server-side Node.Js application and a web application with an HTML/JavaScript front end that uses the Angular.js framework. The server-side application connects to an Amazon Redshift cluster, issues queries, and then returns the results to the front end for display. Your user base is very large and distributed, but it is important to keep the cost of running this application low. Which deployment strategy is both technically valid and the most cost-effective?

A company’s application is running on Amazon EC2 instances in an Auto Scaling group. A DevOps engineer needs to ensure there are at least four application servers running at all times. Whenever an update has to be made to the application, the engineer creates a new AMI with the updated configuration and updates the AWS CloudFormation template with the new AMI ID. After the stack finishes, the engineer manually terminates the old instances one by one, verifying that the new instance is operational before proceeding. The engineer needs to automate this process. Which action will allow for the LEAST number of manual steps moving forward?

You are designing a service that aggregates clickstream data in batch and delivers reports to subscribers via email only once per week. Data is extremely spikey, geographically distributed, high-scale, and unpredictable. How should you design this system?

A company is using Amazon EC2 for various workloads. Company policy requires that instances be managed centrally to standardize configurations. These configurations include standard logging, metrics, security assessments, and weekly patching.

How can the company meet these requirements? (Choose three.)

You need to process long-running jobs once and only once. How might you do this?

A DevOps engineer has been tasked with ensuring that all Amazon S3 buckets, except for those with the word "public" in the name, allow access only to authorized users utilizing S3 bucket policies. The security team wants to be notified when a bucket is created without the proper policy and for the policy to be automatically updated.

Which solutions will meet these requirements?

You are building a large, multi-tenant SaaS (software-as-a-service) application with a component that fetches data to process from a customer-specific Amazon S3 bucket in their account. How should you ensure that your application follows security best practices and limits risk when fetching data from customer-owned Amazon S3 buckets?

Amazon Inspector agent collects telemetry data during assessment run and sends this data to Amazon Inspector dedicated S3 bucket for analysis. How can you access telemetry data out of Amazon Inspector and how can you benefit from this data in securing your resources?