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
A.
Use a HTTPS GET to the Amazon S3 bucket where the files are located.
B.
Restore by implementing a lifecycle policy on the Amazon S3 bucket.
C.
Make an Amazon Glacier Restore API call to load the files into another Amazon S3 bucket within four to six
hours.
D.
Launch a new AWS Storage Gateway instance AMI in Amazon EC2, and restore from a gateway snapshot.
E.
Create an Amazon EBS volume from a gateway snapshot, and mount it to an Amazon EC2 instance.
F.
Launch an AWS Storage Gateway virtual iSCSI device at the branch office, and restore from a gateway
snapshot.
ADF
DEF
All gateway-cached volume data and snapshot data is stored in Amazon S3 encrypted at rest using server-side encryption (SSE) and it cannot be accessed with S3 API or any other tools
DEFINITELY DEF 😀
DEF seems the right answer.
A is certainly not right, because files persisted by Storage Gateway to S3 are not visible, let alone be accessible. https://forums.aws.amazon.com/thread.jspa?threadID=109748
B is invalid option because you cannot apply Lifecycle Policies because AWS Storage Gateway does not give you that option. Cached Volumes are never stored to Glacier and hence “C” is not a valid.
A is incorrect
DEF are correct ones
No, gateway volumes are only accessible from the AWS Storage Gateway and cannot be directly accessed using Amazon S3 APIs. You can take point-in-time snapshots of gateway volumes which are made available in the form of Amazon EBS snapshots.
https://aws.amazon.com/storagegateway/faqs/
ADF
A is correct, it is possible to access files from S3 API
Q: When should I use file gateway vs. the S3 API?
You can use file gateway when you want to access objects in S3 as files using standard filesystem operations. File gateway additionally provides low-latency local access and efficient data transfer. You can use the S3 API when your application doesn’t require file system operations and can manage data transfer directly.
https://aws.amazon.com/storagegateway/faqs/
Taken from the free exam @ http://www.trainertests.com
BEF are correct.
The AWS Storage Gateway service can be used to integrate on-premise storage with AWS. This is useful when you need the performance of local storage with the scale of AWS. This is useful in a hybrid cloud architecture, when some of your workloads are running on premise, and some in the cloud.
With the Storage Gateway your data can be on-premise, but also take advantage of all of the great storage services of AWS. Key data is cached locally, providing higher performance. All data transferred between the local site and AWS is compressed and encrypted. A Storage Gateway can run as a on-site virtual appliance or as an EC2 instance.
The storage gateway comes in three different forms: File Gateway, Volume Gateway, and Tape Gateway.
A File Gateway is an interface into Amazon S3 that allows you to store and retrieve files using NFS 3 and NFS 4.1. File Gateway is an AWS service, and also requires the use of a virtual appliance that runs on VMware ESXi. Local caching is performed by the virtual appliance to improve performance. Lifecycle policies, cross-region replication, and versioning are all still supported in this mode. You can also use IAM to control access.
A Volume Gateway allows you to mount iSCSI devices that you can mount to on-premise machines. The actual data is stored in S3. A Volume Gateway can be configured with cached volumes or stored volumes. Cached volumes maintains a copy of frequently accessed data at the customer premise. This gives you similar performance to on-site storage without the scalability and maintenance overhead. Stored volumes store all your data locally in your on-premise gateway, and asynchronously back up point-in-time snapshots to S3. The backups can be recovered to an EBS volume that is accessible to an EC2 instance.
A Tape Gateway is used to archive backup data in Amazon Glacier. You can use your backup solution with a virtual tape library, rather than maintaining an on-site tape inventory.
DEF Correct.
DEF
A is incorrect “https://aws.amazon.com/storagegateway/faqs/”
Q: Will I be able to access my snapshot data using Amazon S3’s APIs?
No, snapshots are only accessible from the AWS Storage Gateway and Amazon EBS and cannot be directly accessed using Amazon S3 APIs.
Sorry I meant this faq
Q: When I look in Amazon S3 why can’t I see my volume data?
Your volumes are stored in Amazon S3 and accessible through AWS Storage Gateway. You cannot directly access them by using Amazon S3 API actions. You can take point-in-time snapshots of gateway volumes that are made available in the form of Amazon EBS snapshots. Use the file interface to work with your data natively in S3.
DEF are correct.
DEF