Microsoft Azure Solutions Architect Expert AZ-305 Practice Question
A financial-services company runs its core workload in a single Azure SQL Database in the General Purpose tier. Administrators must be able to restore the database to any point in time within the last 30 days and also recover a full backup from any week during the next 10 years. The solution must require minimal ongoing management and incur the lowest possible storage cost. Which Azure SQL capability should you recommend?
Use Azure Backup to protect the database by installing the Azure Backup agent and scheduling weekly backups for 10 years.
Create an Automation runbook that exports the database as a BACPAC file to Azure Storage every week and deletes files older than 10 years.
Configure active geo-replication to a secondary database in another region and keep the replica online for 10 years.
Enable a long-term backup retention (LTR) policy on the Azure SQL Database to store weekly full backups in Azure Blob Storage for up to 10 years.
Azure SQL Database automatically retains short-term, point-in-time backups for up to 35 days, satisfying the 30-day requirement. By enabling the built-in long-term retention (LTR) policy, weekly full backups are copied to cost-effective Azure Blob Storage and can be kept for as long as 10 years, meeting the compliance mandate with minimal administrative overhead. Active geo-replication and auto-failover groups address availability but do not provide decade-long backup retention. Using the Azure Backup agent or manual BACPAC exports would introduce additional operational effort and higher costs compared to the managed LTR feature.
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Why is Azure Blob Storage used for long-term retention in this solution?
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Microsoft Azure Solutions Architect Expert AZ-305
Design data storage solutions
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