If an application is storing hourly log files from thousands of instances from a high traffic web site, which naming scheme would give optimal performance on S3?

An ecommerce application is using Amazon Simple Notification Service (Amazon SNS) with an AWS Lambda subscription to save all new orders into an Amazon DynamoDB table The company wants to record all the orders that are more than a certain amount of money in a separate table The company wants to avoid changes to the processes that post orders to Amazon SNS or the current Lambda function that saves the orders to the DynamoDB table How can a developer implement this feature with the LEAST change to the existing application?

A user is uploading archives to Glacier. The user is trying to understand key Glacier resources.
Which of the below mentioned options is not a Glacier resource?

Which of the following services are key/value stores? Choose 3 answers

A developer is building a backend system for the long-term storage of information from an inventory management system The information needs to be stored so that other teams can build tools to report and analyze the data How should the developer implement this solution to achieve the FASTEST running time?