Microsoft Azure Architect Design (AZ-304) Practice Test

What storage solution is best for archiving log files that need to be readable but not modified for five years?

1. Azure Blob storage with a time-based retention policy

2. Azure Log Analytics workspace

3. Azure Blob Storage with Archive access tier

4. Azure file share with access control enabled

The correct answer is: Azure Blob storage with a time-based retention policy

The best storage solution for archiving log files that need to be readable but not modified for five years is Azure Blob Storage with Archive access tier. This choice aligns perfectly with the requirements of long-term archiving due to its efficiently low-cost storage designed specifically for infrequently accessed data, like log files. Blob storage allows for setting specific access tiers, and the Archive access tier is ideal for data that does not need to be accessed frequently but must remain stored securely for extended periods. Along with cost-effectiveness, the Archive tier ensures that the data remains readable while adhering to a retention policy that prevents modifications over the designated time frame. This feature is particularly important in compliance scenarios, where data integrity must be maintained for audit purposes. While Azure Blob storage with a time-based retention policy also allows for data retention, it does not inherently provide the cost-effective storage solution suitable for archiving needs nor does it ensure the data remains in a readily accessible format like the Archive tier does. Azure Log Analytics workspace is tailored for real-time analysis and management of log data, which may be more appropriate for operational insights than long-term storage needs. Lastly, Azure file shares, while they do provide access control features, do not specifically lend themselves to the same level of cost management