Which AWS service is a hybrid cloud storage service that provides on-premises users access to virtually unlimited cloud storage?Read More →
A developer created a new application that uses Spot Fleet for a variety of instance families across multiple Availability Zones.What should the developer do to ensure that the Spot Fleet is configured for cost optimization?Read More →
A machine learning engineer is building a bird classification model.The engineer randomly separates a dataset into a training dataset and a validation dataset.During the training phase, the model achieves very high accuracy.However, the model did not generalize well during validation of the validation dataset.The engineer realizes that the original dataset was imbalanced.What should the engineer do to improve the validation accuracy of the model?Read More →
A company has an ecommerce application running in a single VPC.The application stack has a single web server and an Amazon RDS Multi-AZ DB instance.The company launches new products twice a month.This increases website traffic by approximately 400% for a minimum of 72 hours.During product launches, users experience slow response times and frequent timeout errors in their browsers.What should a solutions architect do to mitigate the slow response times and timeout errors while minimizing operational overhead?Read More →
A company migrated an on-premises Oracle database to Amazon RDS for Oracle.A database specialist needs to monitor the latency of the database.Which solution will meet this requirement with the LEAST operational overhead?Read More →
A company has on-premises data centers that run an image processing service.The service consists of containerized applications that run on Kubernetes clusters.All the applications have access to the same NFS share for files and data storage.The company is running out of NFS capacity in the data centers and needs to migrate to AWS as soon as possible.The Kubernetes clusters must be highly available on AWS.Which combination of actions will meet these requirements? (Choose two.)Read More →
A company uses Amazon S3 to store proprietary information.The development team creates buckets for new projects on a daily basis.The security team wants to ensure that all existing and future buckets have encryption, logging, and versioning enabled.Additionally, no buckets should ever be publicly read or write accessible.What should a DevOps engineer do to meet these requirements?Read More →
A DevOps engineer needs to implement a solution to install antivirus software on all the Amazon EC2 instances in an AWS account.The EC2 instances run the most recent version of Amazon Linux.The solution must detect all instances and must use an AWS Systems Manager document to install the software if the software is not present.Which solution will meet these requirements?Read More →
A company deployed a new web application on multiple Amazon EC2 instances behind an Application Load Balancer (ALB).The EC2 instances run in an Auto Scaling group.Users report that they are frequently being prompted to log in.What should a SysOps administrator do to resolve this issue?Read More →
A company has a complex web application that leverages Amazon CloudFront for global scalability and performance.Over time, users report that the web application is slowing down.The company’s operations team reports that the CloudFront cache hit ratio has been dropping steadily.The cache metrics report indicates that query strings on some URLs are inconsistently ordered and are specified sometimes in mixed-case letters and sometimes in lowercase letters.Which set of actions should the solutions architect take to increase the cache hit ratio as quickly possible?Read More →
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