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A SysOps administrator notices a scale-out event for an Amazon EC2 Auto Scaling group Amazon CloudWatch shows a spike in the RequestCount metric tor the associated Application Load Balancer The administrator would like to know the IP addresses for the source of the requests

Where can the administrator find this information?

An application is being developed that will be served across a fleet of Amazon EC2 instances, which require a consistent view of persistent data. Items stored vary in size from 1 KB lo 300MB; the items are read frequently, created occasionally, and often require partial changes without conflict. The data store is not expected to grow beyond 2TB. and items will be expired according to age and content type.

Which AWS service solution meets these requirements?

An application running on Amazon EC2 allows users to launch batch jobs for data analysis. The jobs are run asynchronously, and the user is notified when they are complete. While multiple jobs can run concurrently, a user’s request need not be fulfilled for up to 24 hours. To run a job, the application launches an additional EC2 instance that performs all the analytics calculations. A job takes between 75 and 110 minutes to complete and cannot be interrupted.

What is the MOST cost-effective way to run this workload?

A SysOps Administrator noticed that the cache hit ratio for an Amazon CloudFront distribution is less than 10%. Which collection of configuration changes will increase the cache hit ratio for the distribution? (Select two.)