A cloud engineer wants to store data in Amazon S3. The engineer will access some of the data yearly and some of the data daily. Which S3 storage class will meet these requirements MOST cost-effectivel

Question

Options

• AS3 Standard
• BS3 Glacier Deep Archive
• CS3 One Zone-Infrequent Access (S3 One Zone-IA)
• DS3 Intelligent-Tiering

• A
  8% (3)
• B
  3% (1)
• C
  8% (3)
• D
  81% (29)

Explanation

S3 Intelligent-Tiering (D) is correct because it automatically moves objects between access tiers based on changing access patterns - no manual intervention needed - making it ideal when some data is accessed daily and some only yearly, optimizing cost without performance trade-offs.

• A (S3 Standard) is cost-effective for frequent access but charges the same rate regardless of how rarely some objects are accessed, making it unnecessarily expensive for yearly-accessed data.
• B (S3 Glacier Deep Archive) is designed for data accessed once or twice a year at most, with retrieval times of 12–48 hours - unsuitable for daily access.
• C (S3 One Zone-IA) is cheaper than Standard but assumes infrequent access for all data and stores it in only one Availability Zone, making it a poor fit when some data needs daily retrieval and you want resilience.

Memory tip: Think of Intelligent-Tiering as a "set it and forget it" storage class - when your access patterns are mixed or unpredictable, Intelligent-Tiering does the optimization work for you, while the other classes require you to already know how often data will be accessed.

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