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How can you combine S3 storage class optimization with cross-region replication to ensure cost efficiency and disaster recovery?

hard📝 Application Q9 of 15
AWS - Cost Optimization
How can you combine S3 storage class optimization with cross-region replication to ensure cost efficiency and disaster recovery?
AEnable Intelligent-Tiering on source bucket and replicate to a bucket with GLACIER storage class in another region
BReplicate only STANDARD storage class objects and delete others
CDisable lifecycle rules on replicated bucket to avoid conflicts
DUse lifecycle rules to transition replicated objects to cheaper storage classes after replication
Step-by-Step Solution
Solution:
  1. Step 1: Understand replication and storage classes

    Replication copies objects; lifecycle rules manage storage class transitions.
  2. Step 2: Combine optimization and replication

    Use lifecycle rules on replicated bucket to move objects to cheaper classes after replication.
  3. Step 3: Evaluate other options

    Replicating directly to GLACIER is not supported; disabling lifecycle rules wastes cost savings.
  4. Final Answer:

    Use lifecycle rules to transition replicated objects to cheaper storage classes after replication -> Option D
  5. Quick Check:

    Lifecycle + replication = transition after replication [OK]
Quick Trick: Use lifecycle rules on replicated bucket for cost savings [OK]
Common Mistakes:
  • Trying to replicate directly to GLACIER
  • Disabling lifecycle rules on replicated bucket
  • Replicating only STANDARD class objects

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