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Answer: Utilizing a combination of Azure's zone-redundant storage (ZRS) for high availability within a region, geo-redundant storage (GRS) for cross-regional disaster recovery, and a backup strategy that includes both full and incremental backups stored in a separate region for efficient recovery.
The correct answer is C because it addresses all the organization's requirements: ensuring data durability and availability through ZRS and GRS, complying with data protection regulations by storing backups in a separate region, and optimizing for cost-effectiveness with a combination of full and incremental backups. Option A fails to provide a comprehensive backup strategy, Option B does not ensure data availability in case of a regional outage, and Option D is not a reliable disaster recovery strategy as it lacks data replication and backups.
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As the lead data engineer for a multinational corporation, you are tasked with designing a comprehensive disaster recovery plan for a Delta Lake environment hosted on Microsoft Azure. The plan must ensure data durability and availability, comply with global data protection regulations, and optimize for cost-effectiveness. The solution should also support rapid recovery in the event of a regional outage. Considering these requirements, which of the following strategies BEST meets the organization's needs? (Choose one)
A
Relying exclusively on Azure's built-in geo-redundant storage (GRS) for data replication, without implementing any additional backup or recovery procedures.
B
Implementing a backup strategy that only includes weekly full backups stored in the same region as the primary data, to minimize costs.
C
Utilizing a combination of Azure's zone-redundant storage (ZRS) for high availability within a region, geo-redundant storage (GRS) for cross-regional disaster recovery, and a backup strategy that includes both full and incremental backups stored in a separate region for efficient recovery.
D
Disabling all forms of data replication and backups, relying solely on Delta Lake's time travel feature for data recovery in case of a disaster.