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AWS Certified Solutions Architect - Associate · AWS
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Solution is B. Key Analysis Infrequent Access After 90 Days: S3 Intelligent-Tiering automatically transitions objects not accessed for 90 days to the Archive Instant Access tier ($0.004/GB-month), which is 68% cheaper than S3 Standard-IA ($0.0125/GB-month). This aligns perfectly with the requirement to save costs for older ringtones. No Retrieval Fees: Unlike S3 Standard-IA (which charges retrieval fees), Intelligent-Tiering has no retrieval costs for data in Frequent, Infrequent, or Archive Instant Access tiers . Automated Tiering: Intelligent-Tiering eliminates manual lifecycle policies. Objects older than 90 days with no access are moved automatically, reducing operational overhead . For new or frequently accessed ringtones, objects remain in the Frequent Access tier (same cost as S3 Standard), ensuring immediate availability . S3 Intelligent-Tiering provides deeper cost savings than Standard-IA for infrequently accessed data, automates tier transitions, and avoids retrieval fees, making it the optimal choice.
Option D is the most cost-effective solution as it leverages an S3 Lifecycle policy to automatically transition infrequently accessed files to S3 Standard-IA after 90 days, saving costs while meeting the company’s requirements.
B. Mova os arquivos para o S3 Intelligent-Tiering: O S3 Intelligent-Tiering é uma solução flexível, mas tem uma pequena taxa mensal para monitorar os objetos. No caso descrito, uma política de ciclo de vida seria mais econômica para o comportamento de acesso conhecido (raros acessos após 90 dias).