Computer Science > EXAM > AWS Developer 2022 - Practice Exam 1| QUESTIONS WITH COMPLETE SOLUTIONS (All)

AWS Developer 2022 - Practice Exam 1| QUESTIONS WITH COMPLETE SOLUTIONS

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A Developer created a dashboard for an application using Amazon API Gateway, Amazon S3, AWS Lambda, and Amazon RDS. The Developer needs an authentication mechanism allowing a user to sign in and view ... the dashboard. It must be accessible from mobile applications, desktops, and tablets, and must remember user preferences across platforms.Which AWS service should the Developer use to support this authentication scenario? A. AWS KMS B. Amazon Cognito C. AWS Directory Service D. Amazon IAM D Correct Answer: B. Amazon Cognito A Developer has created an S3 bucket s3://mycoolapp and has enabled server across logging that points to the folder s3://mycoolapp/logs. TheDeveloper moved 100 KB of Cascading Style Sheets (CSS) documents to the folder s3://mycoolapp/css, and then stopped work. When the developer came back a few days later, the bucket was 50 GB.What is the MOST likely cause of this situation? A. The CSS files were not compressed and S3 versioning was enabled. B. S3 replication was enabled on the bucket. C. Logging into the same bucket caused exponential log growth. D. An S3 lifecycle policy has moved the entire CSS file to S3 Infrequent Access. Correct Answer: C. Logging into the same bucket caused exponential log growth. A Developer is creating an Auto Scaling group whose instances need to publish a custom metric to Amazon CloudWatch.Which method would be the MOST secure way to authenticate a CloudWatch PUT request? A. Create an IAM user with PutMetricData permission and put the user credentials in a private repository; have applications pull the credentials as needed. B. Create an IAM user with PutMetricData permission, and modify the Auto Scaling launch configuration to inject the user credentials into the instance user data. C. Modify the CloudWatch metric policies to allow the PutMetricData permission to instances from the Auto Scaling group. D. Create an IAM role with PutMetricData permission and modify the Auto Scaling launching configuration to launch instances using that role. Correct Answer: D. Create an IAM role with PutMetricData permission and modify the Auto Scaling launching configuration to launch instances using that role. A Developer is working on an application that tracks hundreds of millions of product reviews in an Amazon DynamoDB table. The records include the data elements shown in the table:Which field, when used as the partition key, would result in the MOST consistent performance using DynamoDB? [Show More]

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