A company currently stores symmetric encryption keys in a hardware security module (HSM). A solution architect must design a solution to migrate key management to AWS. The solution should allow for key rotation and support the use of customer provided keys.
Where should the key material be stored to meet these requirements?

Out of the stripping options available for the EBS volumes, which one has the following disadvantage : 'Doubles the amount of I/O required from the instance to EBS compared to RAID 0, because you're mirroring all writes to a pair of volumes, limiting how much you can stripe.' ?

A company has a custom application running on an Amazon EC instance that:
* Reads a large amount of data from Amazon S3
* Performs a multi-stage analysis
* Writes the results to Amazon DynamoDB
The application writes a significant number of large, temporary files during the multi-stage analysis. The process performance depends on the temporary storage performance.
What would be the fastest storage option for holding the temporary files?

In an AWS CloudFormation template, each resource declaration includes:

A customer implemented AWS Storage Gateway with a gateway-cached volume at their main office. An event takes the link between the main and branch office offline. Which methods will enable the branch office to access their data? Choose 3 answers