Examkin

Question

Difficulty: EasyCost-Optimized Storage Tiering and Lifecycle Management

A graphic design firm stores finished project assets averaging 150 MB150\text{ MB} in an Amazon S3 Standard bucket. The assets are frequently accessed for the first 15 days15\text{ days} after creation. After 15 days15\text{ days}, they are rarely accessed but must remain immediately retrievable. The firm requires all assets to be permanently deleted 45 days45\text{ days} after creation. Which two actions should a solutions architect configure in the S3 Lifecycle policy to meet these requirements in the most cost-effective manner? (Choose two.)

  1. Transition the objects to S3 Standard-Infrequent Access (S3 Standard-IA) after 15 days15\text{ days}.Answer
  2. Configure the objects to expire after 45 days45\text{ days}.Answer
  3. C
    Transition the objects to S3 Standard-Infrequent Access (S3 Standard-IA) after 20 days20\text{ days}.
  4. D
    Transition the objects to S3 Glacier Flexible Retrieval after 15 days15\text{ days}.
  5. E
    Transition the objects to S3 Standard-Infrequent Access (S3 Standard-IA) after 5 days5\text{ days}.

Answer

Transition the objects to S3 Standard-Infrequent Access (S3 Standard-IA) after 15 days, and configure the objects to expire after 45 days.
To satisfy the requirements cost-effectively, objects should remain in S3 Standard for the first 15 days15\text{ days} when they are active. Transitioning them to S3 Standard-IA after 15 days15\text{ days} ensures they remain immediately retrievable while reducing storage costs. Because the lifecycle policy deletes the objects after 45 days45\text{ days}, the objects spend exactly 30 days30\text{ days} in S3 Standard-IA (45−15=3045 - 15 = 30), which fulfills the minimum storage duration requirement without incurring any early deletion charges. Lastly, configuring the objects to expire after 45 days45\text{ days} satisfies the deletion requirement.

Step-by-Step Solution

1
Determine the initial storage period in S3 Standard.
The objects must stay in S3 Standard for the first 15 days15\text{ days} since they are frequently accessed and to avoid early retrieval fees.
Accessing objects frequently in S3 Standard-IA incurs high retrieval charges.
2
Select the appropriate storage tier for the rarely accessed phase.
Identify S3 Standard-IA as the cost-effective tier because it supports immediate retrieval.
Glacier tiers do not support the required immediate retrieval time.
3
Verify the minimum storage duration rule for S3 Standard-IA.
Transitioning at day 1515 and expiring at day 4545 keeps objects in S3 Standard-IA for exactly 30 days30\text{ days} (45−15=3045 - 15 = 30).
This avoids the early deletion storage penalty since S3 Standard-IA has a minimum storage duration of 30 days30\text{ days}.
4
Define the expiration rule.
Configure objects to expire after 45 days45\text{ days}.
This satisfies the requirement to delete the assets after 45 days45\text{ days}.

Key Concept

S3 Lifecycle policies must align transition timelines with access patterns and storage tier minimum duration requirements (such as the 30-day minimum for S3 Standard-IA) to optimize costs.
Rate this question

Topics

Cost-Optimized Storage Tiering and Lifecycle Management