AZ-104 Question 102
Single answerYou are an Azure Administrator for a financial services company required to store large volumes of transactional history data for occasional auditing. The data is seldom accessed, but when needed, it must be immediately available without a lengthy rehydration process. Which Azure Blob storage tier is most cost-effective to meet these requirements?
- A
Hot tier
- B
Cool tier
- C
Archive tier
- D
Premium tier
Show answer and explanation
Correct answer: B
Explanation
While the Archive tier provides the lowest cost, it also has significant rehydration time. The Cool tier strikes a balance by offering lower costs than Hot while enabling quick retrieval, making it the most suitable option for infrequently accessed data that still needs to be available on-demand.
- A. Incorrect.
The Hot tier is suited for active data that is accessed frequently; it is more expensive for data that is rarely accessed.
- B. Correct.
The Cool tier offers lower storage costs than the Hot tier and still provides immediate access, making it ideal for infrequently accessed data that must remain quickly retrievable.
- C. Incorrect.
The Archive tier provides the lowest storage cost but requires a rehydration process that can take hours, so it is unsuitable for data that must be immediately available.
- D. Incorrect.
The Premium tier is designed for high-performance workloads, not for infrequent access at lower cost.