Examkin

Soru

Zorluk: ZorAmazon S3 Storage Class and Lifecycle Optimization

An organization uploads raw research datasets to an Amazon S3 Standard bucket. The datasets are frequently accessed during the first 1515 days. Access becomes occasional between day 1616 and day 4545, though any retrievals must remain instantaneous. After 4545 days, the data is rarely accessed but must be retained long-term for compliance, where a retrieval time of several hours is acceptable.

A SysOps administrator attempts to configure an Amazon S3 Lifecycle policy with the following transition actions:
* Transition to S3 Standard-Infrequent Access (Standard-IA) after 1515 days.
* Transition to S3 Glacier Flexible Retrieval after 4040 days.

When saving this policy, the administrator receives a validation error. Which of the following explains the reason for this error?

  1. The S3 Lifecycle configuration violates the minimum 3030-day offset requirement between transitioning to S3 Standard-IA and transitioning to S3 Glacier Flexible Retrieval.Cevap
  2. B
    The minimum storage duration for objects in S3 Standard before transitioning to S3 Standard-IA is 3030 days, which prevents the initial transition at 1515 days.
  3. C
    Objects in S3 Standard-IA cannot be transitioned directly to S3 Glacier Flexible Retrieval and must first transition to S3 Glacier Instant Retrieval.
  4. D
    S3 Glacier Flexible Retrieval requires a minimum storage duration of 9090 days, which prevents transitioning objects out of S3 Standard-IA before 9090 days have elapsed.

Cevap

The S3 Lifecycle configuration violates the minimum 3030-day offset requirement between transitioning to S3 Standard-IA and transitioning to S3 Glacier Flexible Retrieval.
The correct answer is correct because Amazon S3 lifecycle validation prevents configuring a transition from S3 Standard-IA to a Glacier storage class unless there is a minimum of 3030 days difference between the two transition times. In this scenario, transitioning to Standard-IA at day 1515 and Glacier Flexible Retrieval at day 4040 leaves only 2525 days in Standard-IA, which fails validation.

Adım Adım Çözüm

1
Analyze the access patterns and proposed transition timeline.
The proposed timeline transitions objects from S3 Standard to S3 Standard-IA at day 1515, and then from S3 Standard-IA to S3 Glacier Flexible Retrieval at day 4040.
This establishes the exact time frame spent in the S3 Standard-IA storage class as 40−15=2540 - 15 = 25 days.
2
Check Amazon S3 Lifecycle transition rules and constraints.
Amazon S3 requires that the transition to an S3 Glacier storage class (Glacier Flexible Retrieval or Glacier Deep Archive) must be configured to occur at least 3030 days after the transition to S3 Standard-IA or S3 One Zone-IA.
This constraint matches the minimum storage duration billing period of 3030 days for S3 Standard-IA and prevents immediate cost penalties or invalid transition paths.
3
Identify the policy validation failure.
The proposed configuration transitions objects to S3 Glacier Flexible Retrieval only 2525 days after S3 Standard-IA (40−15=2540 - 15 = 25), violating the 3030-day minimum offset requirement.
To fix this, the administrator must change the S3 Glacier Flexible Retrieval transition to day 4545 (15+3015 + 30) or later.

Anahtar Kavram

Amazon S3 Lifecycle transition rules require a minimum of 3030 days between a transition to S3 Standard-IA and a subsequent transition to any S3 Glacier storage class.
Bu soruyu puanla

Konular

Amazon S3 Storage Class and Lifecycle Optimization

Bu konudan daha fazla soru