AWS Certified Solutions Architect - Associate
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A company runs an SMB file server in its data center. The file server stores large files that the company frequently accesses for up to 7 days after the file creation date. After 7 days, the company needs to be able to access the files with a maximum retrieval time of 24 hours.
Which solution will meet these requirements?
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A
Use AWS DataSync to copy data that is older than 7 days from the SMB file server to AWS.
B
Create an Amazon S3 File Gateway to increase the company's storage space. Create an S3 Lifecycle policy to transition the data to S3 Glacier Deep Archive after 7 days.
C
Create an Amazon FSx File Gateway to increase the company's storage space. Create an Amazon S3 Lifecycle policy to transition the data after 7 days.
D
Configure access to Amazon S3 for each user. Create an S3 Lifecycle policy to transition the data to S3 Glacier Flexible Retrieval after 7 days.
Explanation:
Explanation
Correct Answer: D
Why Option D is correct:
- S3 Glacier Flexible Retrieval has a retrieval time of up to 12 hours for standard retrievals (or 1-5 minutes for expedited retrievals), which meets the requirement of "maximum retrieval time of 24 hours" after 7 days.
- S3 Glacier Deep Archive (Option B) has retrieval times of up to 48 hours for standard retrievals, which exceeds the 24-hour requirement.
- Amazon FSx File Gateway (Option C) doesn't provide the required retrieval time guarantee for archived data.
- AWS DataSync (Option A) is just a data transfer service and doesn't address the storage and retrieval requirements.
Key Requirements Analysis:
- Frequent access for up to 7 days: Files need to be readily accessible during this period
- After 7 days: Maximum retrieval time of 24 hours
- SMB file server in data center: Needs integration with AWS
Solution Architecture:
- Configure access to Amazon S3 for users
- Use S3 Lifecycle policy to transition data to S3 Glacier Flexible Retrieval after 7 days
- S3 Glacier Flexible Retrieval provides:
- Standard retrieval: 3-5 hours (well within 24-hour requirement)
- Bulk retrieval: 5-12 hours (also within requirement)
- Expedited retrieval: 1-5 minutes (for urgent needs)
Why other options are incorrect:
- Option A: DataSync only copies data but doesn't provide the storage tiering or retrieval capabilities needed.
- Option B: S3 Glacier Deep Archive has retrieval times of up to 48 hours, which violates the 24-hour maximum requirement.
- Option C: FSx File Gateway doesn't specify the appropriate storage class and doesn't guarantee the retrieval time requirement.
This solution provides cost-effective storage while meeting the retrieval time requirements for archived data.
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