AWS Certified Solutions Architect - Associate
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A company wants to monitor its AWS costs for financial review. The cloud operations team is designing an architecture in the AWS Organizations management account to query AWS Cost and Usage Reports for all member accounts. The team must run this query once a month and provide a detailed analysis of the bill.
Which solution is the MOST scalable and cost-effective way to meet these requirements?
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UAnonymous
A
Enable Cost and Usage Reports in the management account. Deliver reports to Amazon Kinesis. Use Amazon EMR for analysis.
B
Enable Cost and Usage Reports in the management account. Deliver the reports to Amazon S3 Use Amazon Athena for analysis.
C
Enable Cost and Usage Reports for member accounts. Deliver the reports to Amazon S3 Use Amazon Redshift for analysis.
D
Enable Cost and Usage Reports for member accounts. Deliver the reports to Amazon Kinesis. Use Amazon QuickSight for analysis.
Explanation:
Explanation
Correct Answer: B
Why Option B is the best solution:
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Cost and Usage Reports in management account: When using AWS Organizations, you can enable Cost and Usage Reports (CUR) in the management account to get consolidated billing data for all member accounts. This is more efficient than enabling CUR separately in each member account.
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Amazon S3 for storage: S3 is the most cost-effective storage solution for large datasets like CUR files. CUR reports are delivered as CSV or Parquet files to S3, which provides durable, scalable, and low-cost storage.
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Amazon Athena for analysis: Athena is a serverless query service that allows you to analyze data directly in S3 using standard SQL. Since the team only needs to run queries once a month, Athena's pay-per-query pricing model is highly cost-effective compared to maintaining a dedicated data warehouse like Redshift.
Why other options are less optimal:
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Option A (Kinesis + EMR): Kinesis is designed for real-time data streaming, which is unnecessary for monthly analysis. EMR (Elastic MapReduce) is overkill for simple monthly queries and would be more expensive than Athena.
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Option C (Member accounts + Redshift): Enabling CUR in each member account creates unnecessary complexity and management overhead. Redshift is a full data warehouse solution that would be more expensive than Athena for monthly queries.
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Option D (Member accounts + Kinesis + QuickSight): Similar issues as Option C - unnecessary complexity with member accounts, Kinesis for real-time streaming when monthly batch processing is needed, and QuickSight is a visualization tool that still needs a data source (which would be better served by S3 + Athena).
Key AWS Services Benefits:
- AWS Cost and Usage Reports: Provides detailed billing data with resource-level granularity
- Amazon S3: Cost-effective storage with 99.999999999% durability
- Amazon Athena: Serverless, pay-per-query, no infrastructure to manage, integrates directly with S3
This solution provides the most scalable and cost-effective approach for monthly financial analysis of AWS costs across an organization.
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