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Question 890

A company needs to optimize its Amazon S3 storage costs for an application that generates many files that cannot be recreated. Each file is approximately 5 MB and is stored in Amazon S3 Standard storage.

The company must store the files for 4 years before the files can be deleted. The files must be immediately accessible. The files are frequently accessed in the first 30 days of object creation, but they are rarely accessed after the first 30 days.

Which solution will meet these requirements MOST cost-effectively?

    Correct Answer: C

    To meet the company's requirements, a cost-effective solution involves using storage classes that match the access patterns of the files. Initially, the files are frequently accessed, so they remain in Amazon S3 Standard storage for the first 30 days. After that, since the files are rarely accessed but still need to be immediately accessible, they should be moved to Amazon S3 Standard-Infrequent Access (S3 Standard-IA), which is designed for infrequently accessed data that still requires rapid access when needed. This approach optimizes cost while ensuring accessibility. S3 Standard-IA provides lower storage costs compared to S3 Standard while still allowing immediate access, making it ideal for this scenario. The files can be deleted after 4 years as per the requirement.

Discussion
sandordiniOption: A

Although it's not stated what is meant by 'rarely accessed', this scenario would primarily be a candidate for the Glacier Instant Retrieval tier as the storage price would be more than 3 times lower compared to Standard IA. In the specific case of files being more frequently retrieved than quarterly, it can qualify for consideration of Standard IA. Actually, we don't have the required info, so we have to guess what they are thinking.. which is pretty lame, to be honest..

sheilawu

S3 Glacier Instant Retrieval only retain the file for maximun 90 days, that is why A is not correct answer. So C is right answer.

Edwars

No, it isn't. It is just the opposite. Objects archived to S3 Glacier Flexible Retrieval have a minimum of 90 days of storage. If an object is deleted, overwritten, or transitioned before 90 days, a pro-rated charge equal to the storage charge for the remaining days will be incurred. https://aws.amazon.com/s3/faqs/?nc=sn&loc=7

ScheldonOption: C

AnswerC We cannot choose B because if that one zone will fail, company will not be able to recreate them. We cannot choose D because we do not have to store files after 4y hence we can delete them (cost savings) We cannot choose A - Glacier is less expensive (0,004 per GB) then S3-Standard - IA but is not allowing for instant access which is one of requirements (there is no information that data access shouldn't be accessible immedietly) we have only information that after 30d access to data is less frequently. Hence I think we need to choose S3 Standard - IA (answer C)

bujumanOption: C

Requirements: - frequently accessed for 30 days - lower cost Features for S3 Standard-IA: - Infrequently accessed objects - Milliseconds to acces According to me, best option for this use case is C NB: Glacier better suits for lower cost, infrequent access.

Karls

B. Create an S3 Lifecycle policy to move the files to S3 One Zone-Infrequent Access (S3 One Zone-IA) 30 days after object creation. Delete the files 4 years after object creation. This option leverages S3 One Zone-IA, which offers a lower cost compared to S3 Standard-IA, while ensuring that files are immediately accessible during the first 30 days of their creation. Then, after this period, the files are moved to S3 One Zone-IA for less frequent access storage, further reducing costs. Finally, the files are deleted after 4 years, meeting the requirement for long-term retention.

FrozenCarrotOption: A

S3 Glacier Instant Retrieval delivers the fastest access to archive storage, with the same throughput and milliseconds access as the S3 Standard and S3 Standard-IA storage classes. --- https://aws.amazon.com/s3/storage-classes/glacier/instant-retrieval/

EdricHoangOption: B

cost effective -> OneZone IA "The files must be immediately accessible" -> cannot be Glacier

Mayank0502Option: C

this option has most durability

Lin878Option: C

"are rarely accessed after the first 30 days" - not often I will go with "C".

345645a

https://aws.amazon.com/es/s3/storage-classes/glacier/instant-retrieval/

sheilawuOption: C

mmediately accessible =>C

th1002Option: C

why do we need one zone, glacier instant for 30 days ? or why do we need to move to glacier after 4 years ? I think C is correct