Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 88 discussion

this question is too vague imho if the question is looking for a way to incur charges to the European company instead of the US company, then requester pay makes sense. if they are looking to reduce overall data transfer cost, then B makes sense because the data does not leave the AWS network, thus data transfer cost should be lower technically? A. makes sense because the US company saves money, but the European company is paying for the charges so there is no overall saving in cost when you look at the big picture I will go for B because they are not explicitly stating that they want the other company to pay for the charges

"Typically, you configure buckets to be Requester Pays buckets when you want to share data but not incur charges associated with others accessing the data. For example, you might use Requester Pays buckets when making available large datasets, such as zip code directories, reference data, geospatial information, or web crawling data." https://docs.aws.amazon.com/AmazonS3/latest/userguide/RequesterPaysBuckets.html

• In general, bucket owners pay for all Amazon S3 storage and data transfer costs associated with their bucket • With Requester Pays buckets, the requester instead of the bucket owner pays the cost of the request and the data download from the bucket

The question is clear and answer too. undoubtedly A - one can have "Requester pays" feature on a S3 bucket! My retention isn't great but I remember this from the S3 lesson! https://docs.aws.amazon.com/AmazonS3/latest/userguide/RequesterPaysBuckets.html

B is not right because we do not know the usage pattern by the marketing company. copying whole data may cost much more

The survey company wants to share its data transfer costs as low as possible, to replicate the data to the Europe company's account, there will still be some data transfer costs for survey company to pay, so it will be better to request the Europe's market company to pay.

Answer is B, cross region replication.

Option A. When you use S3 Cross-Region Replication (CRR), you will incur data transfer costs. These costs include a fee for transferring data between regions, which is approximately $0.02 per GB.

Why Not the Other Options? B. S3 Cross-Region Replication: Cross-Region Replication (CRR) copies data between S3 buckets in different AWS Regions but incurs data transfer costs for replication, which does not minimize costs for the survey company. It is also unnecessary if the marketing firm can directly access the bucket. C. Cross-Account Access: Granting cross-account access allows the marketing firm to read data directly, but the data transfer costs would still be borne by the survey company, which contradicts the goal of minimizing the company’s costs. D. S3 Intelligent-Tiering: S3 Intelligent-Tiering optimizes storage costs for infrequently accessed data but does not address the need to minimize data transfer costs during sharing. Syncing the bucket to the marketing firm’s bucket would also incur transfer costs.

The Requester Pays feature is the most cost-effective solution for this scenario, as it shifts the data transfer costs to the marketing firm while keeping the data accessible.

B has actually more cost. A is the answer.

If I understand the question correctly, the owner is already paying to maintain the data (size is still growing) in its S3 bucket. The owner wants to ensure that its data transfer costs remain as low as possible (implies that it is best if the transfer cost is $0). For option A, the requestor will have to bear the cost of the data transfer request from the bucket, with the data owner incurring a $0 transfer cost, which is optimal for the data owner. This question does not state that the original data owner must also consider the cost incurred by the requestor and then find an optimal ways to share the data transfer cost for both parties. My 2 cents' worth.

The company wants to ensure that "its" data transfer costs remain as low as possible, so I choose A

Per my understanding, the company is already paying to maintain the data(data keeps growing) in the S3 bucket. The company wants to ensure that its data transfer costs remain as low as possible (implies that it is best if the transfer cost is $0). As per option A, the requestor would bear the cost of the request and the data downloaded from the bucket, causing the data owner to incur a $0 transfer cost, which is optimal for the data owner. The question does not say that the data owner must also consider the cost incurred by the requestor and then find an optimal cost solution.

No idea but I guess B. request payer sounds like stpd

it's A because the company will not pay extra cost

Ans B... because we want an overall cost-effective solution; A simply offloads the cost to someone else...