A company manages three separate AWS accounts for its production, development, and test environments.Each Developer is assigned a unique IAM user under the development account.A new application hosted on an Amazon EC2 instance in the development account requires read access to the archived documents stored in an Amazon S3 bucket in the production account.How should access be granted?Read More →
A company is building a new web-based customer relationship management application.The application will use several Amazon EC2 instances that are backed by Amazon Elastic Block Store (Amazon EBS) volumes behind an Application Load Balancer (ALB).The application will also use an Amazon Aurora database.All data for the application must be encrypted at rest and in transit.Which solution will meet these requirements?Read More →
A live-events company is designing a scaling solution for its ticket application on AWS.The application has high peaks of utilization during sale events.Each sale event is a one-time event that is scheduled.The application runs on Amazon EC2 instances that are in an Auto Scaling group.The application uses PostgreSQL for the database layer.The company needs a scaling solution to maximize availability during the sale events.Which solution will meet these requirements?Read More →
A company has an AWS Lambda function that reads messages from an Amazon Simple Queue Service (Amazon SQS) queue by using the Amazon SQS API.The Lambda function is not processing all the messages successfully because of random failures of a third-party dependency.A developer needs to improve the reliability of the Lambda function so that the Lambda function will process each message successfully despite the failures of the third-party dependency.Which solution will meet this requirement with the LEAST effort?Read More →
A company is using a third-party service to back up 10 TB of data to a tape library.The on-premises backup server is running out of space.The company wants to use AWS services for the backups without changing its existing backup workflows.Which AWS service should the company use to meet these requirements?Read More →
An e-commerce company wants to lower costs on its nightly jobs that aggregate the current day’s sales and store the results in Amazon S3.The jobs are currently run using multiple on-demand instances and the jobs take just under 2 hours to complete.If a job fails for any reason, it needs to be restarted from the beginning.What method is the MOST cost effective based on these requirements?Read More →
A company builds computer-vision models that use deep learning for the autonomous vehicle industry.A machine learning (ML) specialist uses an Amazon EC2 instance that has a CPU:GPU ratio of 12:1 to train the models.The ML specialist examines the instance metric logs and notices that the GPU is idle half of the time.The ML specialist must reduce training costs without increasing the duration of the training jobs.Which solution will meet these requirements?Read More →
An image-hosting company stores its objects in Amazon S3 buckets.The company wants to avoid accidental exposure of the objects in the S3 buckets to the public.All S3 objects in the entire AWS account need to remain private.Which solution will meet these requirements?Read More →
A database specialist is working on an Amazon RDS for PostgreSQL DB instance that is experiencing application performance issues due to the addition of new workloads.The database has 5 ืยขืโ of storage space with Provisioned IOPS.Amazon CloudWatch metrics show that the average disk queue depth is greater than200 and that the disk I/O response time is significantly higher than usual.What should the database specialist do to improve the performance of the application immediately?Read More →
An engineer created an A/B test of a new feature on an Amazon CloudWatch Evidently project.The engineer configured two variations of the feature (Variation A and Variation B) for the test.The engineer wants to work exclusively with Variation A.The engineer needs to make updates so that Variation A is the only variation that appears when the engineer hits the application’s endpoint.Which solution will meet this requirement?Read More →
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