Amazon DVA-C01 Practice Test - Questions Answers, Page 22
List of questions
Question 211
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AWS CodeBuild builds code for an application, creates the Docker image, pushes the image to Amazon Elastic Container Registry (Amazon ECR), and tags the image with a unique identifier. If the Developers already have AWS CLI configured on their workstations, how can the Docker images be pulled to the workstations?
Explanation:
https://docs.aws.amazon.com/cli/latest/reference/ecr/get-login.html
Question 212
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A company caches session information for a web application in an Amazon DynamoDB table. The company wants an automated way to delete old items from the table. What is the simplest way to do this?
Explanation:
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/time-to-live-ttl-howto.html
Question 213
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An application is expected to process many files. Each file takes four minutes to process each AWS Lambda invocation. The Lambda function does not return any important data. What is the fastest way to process all the files?
Question 214
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The upload of a 15 GB object to Amazon S3 fails. The error message reads: “Your proposed upload exceeds the maximum allowed object size.” What technique will allow the Developer to upload this object?
Explanation:
https://docs.aws.amazon.com/AmazonS3/latest/dev/UploadingObjects.html
Question 215
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A company has an AWS CloudFormation template that is stored as a single file. The template is able to launch and create a full infrastructure stack. Which best practice would increase the maintainability of the template?
Question 216
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A Developer wants to encrypt new objects that are being uploaded to an Amazon S3 bucket by an application. There must be an audit trail of who has used the key during this process. There should be no change to the performance of the application.
Which type of encryption meets these requirements?
Question 217
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An on-premises application makes repeated calls to store files to Amazon S3. As usage of the application has increased, “LimitExceeded” errors are being logged. What should be changed to fix this error?
Question 218
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An organization is storing large files in Amazon S3, and is writing a web application to display metadata about the files to end-users. Based on the metadata a user selects an object to download. The organization needs a mechanism to index the files and provide single-digit millisecond latency retrieval for the metadata.
What AWS service should be used to accomplish this?
Explanation:
Explanation:
Amazon DynamoDB is a fast and flexible NoSQL database service for all applications that need consistent, single-digit millisecond latency at any scale. It is a fully managed database and supports both document and key-value data models. Its flexible data model and reliable performance make it a great fit for mobile, web, gaming, ad-tech, Internet of Things (IoT), and many other applications. References:
Question 219
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While developing an application that runs on Amazon EC2 in an Amazon VPC, a Developer identifies the need for centralized storage of application-level logs. Which AWS service can be used to securely store these logs?
Question 220
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A stock market monitoring application uses Amazon Kinesis for data ingestion. During simulated tests of peak data rates, the Kinesis stream cannot keep up with the incoming data. What step will allow Kinesis to accommodate the traffic during peak hours?
Explanation:
https://docs.aws.amazon.com/streams/latest/dev/developing-producers-with-kpl.html
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