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Difficulty: MediumAzure Storage Accounts, Blob, Disk, Files, and Storage Tiers

A company is building a web application on Azure. The architecture team needs to select storage solutions that optimize cost while meeting specific data access requirements:

1. High-resolution product images must be stored. These images are requested frequently by users and must load with minimal latency.
2. Application audit logs must be stored. These logs are rarely accessed but must be available immediately for real-time security analysis if a security event is detected.

Which two of the following Azure Storage configurations should the team select to meet these requirements?

  1. The Hot access tier for the product imagesAnswer
  2. The Cool access tier for the audit logsAnswer
  3. C
    The Archive access tier for the audit logs
  4. D
    An Azure managed disk for the audit logs

Answer

The Hot access tier should be used for the frequently accessed product images, and the Cool access tier should be used for the infrequently accessed audit logs that still require immediate availability.
The Hot access tier is ideal for frequently accessed data like product images, offering the lowest access cost. The Cool access tier is designed for infrequently accessed data like audit logs that must remain online and immediately available for queries.

Step-by-Step Solution

1
Analyze the requirements for the product images.
Since product images are accessed frequently and require low latency, the Hot access tier is the correct choice.
The Hot access tier offers the lowest access latency and lowest transactional cost for frequently accessed data.
2
Analyze the requirements for the audit logs.
Since the logs are rarely accessed but must be available immediately for analysis, the Cool access tier is the correct choice.
The Cool access tier provides cheaper storage than the Hot tier while keeping the data online and immediately accessible without delay.
3
Evaluate the incorrect options to confirm they do not meet the constraints.
The Archive tier is offline and requires rehydration, and managed disks are IaaS resources that increase administrative overhead.
This confirms that only the Hot and Cool tiers meet both the accessibility and cost-efficiency goals of the scenario.

Key Concept

Azure Storage access tiers (Hot, Cool, Archive) and their appropriate use cases based on access frequency and availability requirements.
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Topics

Azure Storage Accounts, Blob, Disk, Files, and Storage Tiers

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