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70-473 · Question #80

Your environment contains a Microsoft Azure machine that has Microsoft SQL Server Standard installed. An application named App1 uses the data stored in SQL server. The Service level Agreement (SLA)…

The correct answer is D. Log Shipping. To provide disaster recovery for SQL Server Standard Edition with a 10-minute RPO and availability across two additional Azure regions, Log Shipping is the appropriate solution.

Implement business continuity

Question

Your environment contains a Microsoft Azure machine that has Microsoft SQL Server Standard installed. An application named App1 uses the data stored in SQL server. The Service level Agreement (SLA) for App1 states that the application can lose a maximum of 10 minutes of data and that the data must be available if two Azure regions fail. You need to implement a solution that provides disaster recovery for App1. In two other Azure regions, you deploy an Azure virtual machine that has SQL Server installed. What should you implement next?

Options

  • AMerge Replication
  • BAlwaysOn Failover Cluster Instances
  • CAlwaysOn Availability Groups
  • DLog Shipping

How the community answered

(35 responses)
  • A
    11% (4)
  • B
    9% (3)
  • C
    34% (12)
  • D
    46% (16)

Why each option

To provide disaster recovery for SQL Server Standard Edition with a 10-minute RPO and availability across two additional Azure regions, Log Shipping is the appropriate solution.

AMerge Replication

Merge Replication is primarily designed for data synchronization in disconnected or occasionally connected environments and is not an optimal or robust solution for achieving low RPO disaster recovery for a critical application.

BAlwaysOn Failover Cluster Instances

AlwaysOn Failover Cluster Instances provide high availability within a single Windows Server Failover Cluster, typically across nodes in the same datacenter or region, but do not provide disaster recovery across multiple Azure regions.

CAlwaysOn Availability Groups

AlwaysOn Availability Groups are not available in SQL Server Standard Edition, which is specified in the question, and thus cannot be implemented.

DLog ShippingCorrect

Log Shipping supports cross-region disaster recovery for SQL Server Standard Edition by periodically backing up transaction logs from the primary server and restoring them to one or more secondary servers. This method allows for a low Recovery Point Objective (RPO) within minutes and ensures data availability even if two Azure regions fail, by configuring multiple secondary servers.

Concept tested: SQL Server disaster recovery, Edition features

Source: https://learn.microsoft.com/en-us/sql/database-engine/log-shipping/about-log-shipping-sql-server

Topics

#Disaster recovery#SQL Server DR#Log Shipping#RPO/RTO

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