Which Amazon S3 storage class is the MOST cost-effective for long-term storage?
2026-03-21
Which Amazon S3 storage class is the MOST cost-effective for long-term storage?Read More →
What should a solutions architect do to mitigate any single point of failure in this architecture?
2026-03-21
A company has two VPCs named Management and Production.The Management VPC uses VPNs through a customer gateway to connect to a single device in the data center.The Production VPC uses a virtual private gateway with two attached AWS Direct Connect connections.The Management and Production VPCs both use a single VPC peering connection to allow communication between the applications.What should a solutions architect do to mitigate any single point of failure in this architecture?Read More →
Which AWS service or tool helps users visualize, understand, and manage spending and usage over time?
2026-03-21
Which AWS service or tool helps users visualize, understand, and manage spending and usage over time?Read More →
What is the MOST operationally efficient solution that meets these requirements?
2026-03-21
A developer has created a data collection application that uses Amazon API Gateway, AWS Lambda, and Amazon S3.The application’s users periodically upload data files and wait for the validation status to be reflected on a processing dashboard.The validation process is complex and time-consuming for large files.Some users are uploading dozens of large files and have to wait and refresh the processing dashboard to see if the files have been validated.The developer must refactor the application to immediately update the validation result on the user’s dashboard without reloading the full dashboard.What is the MOST operationally efficient solution that meets these requirements?Read More →
Which solution will meet these requirements?
2026-03-21
A DevOps engineer is designing an application that integrates with a legacy REST API.The application has an AWS Lambda function that reads records from an Amazon Kinesis data stream.The Lambda function sends the records to the legacy REST API.Approximately 10% of the records that the Lambda function sends from the Kinesis data stream have data errors and must be processed manually.The Lambda function event source configuration has an Amazon Simple Queue Service (Amazon SQS) dead-letter queue as an on-failure destination.The DevOps engineer has configured the Lambda function to process records in batches and has implemented retries in case of failure.During testing, the DevOps engineer notices that the dead-letter queue contains many records that have no data errors and that already have been processed by the legacy REST API.The DevOps engineer needs to configure the Lambda function’s event source options to reduce the number of errorless records that are sent to the dead-letter queue.Which solution will meet these requirements?Read More →
Which solution will meet these requirements?
2026-03-21
A company has applications that process transaction requests multiple times each minute.The applications write transaction data to a single Amazon RDS DB instance.As the company begins to process more transactions, the company becomes concerned that it has no failover solution in place for disaster recovery (DR).The company needs the DB instance to fail over automatically without losing any committed transactions.Which solution will meet these requirements?Read More →
When does an AWS Data Pipeline terminate the AWS Data Pipeline-managed compute resources?
2026-03-21
When does an AWS Data Pipeline terminate the AWS Data Pipeline-managed compute resources?Read More →
Which solution will meet these requirements?
2026-03-21
A large media company hosts a web application on AWS.The company wants to start caching confidential media files so that users around the world will have reliable access to the files.The content is stored in Amazon S3 buckets.The company must deliver the content quickly, regardless of where the requests originate geographically.Which solution will meet these requirements?Read More →
Which option provides a scalable application architecture to handle peak seasons with the LEAST development effort?
2026-03-21
A company that provisions job boards for a seasonal workforce is seeing an increase in traffic and usage.The backend services run on a pair of Amazon EC2 instances behind an Application Load Balancer with Amazon DynamoDB as the datastore.Application read and write traffic is slow during peak seasons.Which option provides a scalable application architecture to handle peak seasons with the LEAST development effort?Read More →
Which AWS service or tool should the company use to meet these requirements?
2026-03-21
A company is in the early stages of planning a migration to AWS.The company wants to obtain the monthly predicted total AWS cost of ownership for future Amazon EC2 instances and associated storage.Which AWS service or tool should the company use to meet these requirements?Read More →