SAA-C03 · Question #662
A company is using AWS DataSync to migrate millions of files from an on-premises system to AWS. The average size of the files is 10 KB. The company wants to store the files in an Amazon S3 bucket…
The correct answer is A. Use an archive tool to group the files into large objects. Use DataSync to migrate the objects. Grouping millions of 10 KB files into large archive objects minimizes per-object overhead (PUT, retrieval, and metadata costs). Storing these archive objects in S3 Glacier Instant Retrieval for the first year provides low-cost storage with millisecond access, satisfying the…
Question
A company is using AWS DataSync to migrate millions of files from an on-premises system to AWS. The average size of the files is 10 KB. The company wants to store the files in an Amazon S3 bucket. Users will need immediate access to the files once or twice during the first year after migration. After 1 year, the company must archive the files for at least 7 years. Which solution will meet these requirements MOST cost-effectively?
Options
- AUse an archive tool to group the files into large objects. Use DataSync to migrate the objects.
- BUse an archive tool to group the files into large objects. Use DataSync to copy the objects to S3
- CStore the files in S3 Glacier Instant Retrieval. Use a lifecycle policy to transition the files to S3
- DConfigure DataSync to transfer the files directly to S3 Glacier Deep Archive. Create a Vault Lock
How the community answered
(21 responses)- A62% (13)
- B24% (5)
- C10% (2)
- D5% (1)
Explanation
Grouping millions of 10 KB files into large archive objects minimizes per-object overhead (PUT, retrieval, and metadata costs). Storing these archive objects in S3 Glacier Instant Retrieval for the first year provides low-cost storage with millisecond access, satisfying the requirement for “immediate access once or twice during the first year.” After 1 year, transitioning the data to S3 Glacier Deep Archive gives the lowest long-term cost for the required 7+ years of retention. This approach delivers the required access pattern and retention with the best overall cost efficiency.
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