Q472. A group of research institutions are partnering to study 2 PB of genomic data that changes regularly. The primary institution that owns the data is storing it in an Amazon S3 bucket in its AWS account All of the secondary

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Q472. A group of research institutions are partnering to study 2 PB of genomic data that changes regularly. The primary institution that owns the data is storing it in an Amazon S3 bucket in its AWS account All of the secondary institutions in the partnership have their own AWS accounts and require read access to the data. The institute that owns the data does not want to pay for the data transfer costs associated with allowing the secondary institutes access to the data.Which of the following solutions will meet the requirements?

A.In the primary account create a cross-account AWS IAM role for each secondary account that allows read access to the data. Have the secondary institutions assume the role when accessing the data.
B.In the primary account create an S3 bucket policy to give read access to each secondary account.Enable Requester Pays on the S3 bucket. Have the secondary institutions use their own AWS credentials with read permissions to the S3 bucket when accessing the data.
C.Create an S3 bucket in each of the secondary accounts with a S3 bucket policy that gives write access to the primary account. Periodically synchronize the S3 buckets from the primary account to each secondary account. Have the secondary institutions use their own AWS credentials when accessing the data
D.In the primary account create a cross-account AWS IAM role for each secondary account that allows read access to the data Enable Requester Pays on the S3 bucket Have the secondary institutions assume the role when accessing the data.
正确答案B
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