Isolated Failover for Azure Site Recovery | Validate Configuration without Data Loss

Correct Answer: C

Three types of failovers offered by Azure Site Recovery are - Test failover, planned failover, and unplanned failover.

Test failover provides you with the opportunity of validating your Azure Site Recovery configuration in an isolated environment, without any loss of data or significant effect on the production environment.

Option A is incorrect.

Planned failover provides you with the opportunity to initiate disaster recovery without any data loss, generally as part of planned downtime.

Option B is incorrect.

Unplanned failover serves as the last resort in event of an unplanned outage that might affect the availability of the primary/main site and significantly result in data loss.

Option C is correct.

It is the test failover that provides you with the opportunity of validating your Azure Site Recovery configuration in an isolated environment, without any loss of data or significant effect on the production environment.

Option D is incorrect.

Three types of failovers offered by Azure Site Recovery are - Test failover, planned failover, and unplanned failover.

There is no failover like Preconfigured Failover.

Reference:

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The answer is C. Test Failover.

Azure Site Recovery (ASR) is a disaster recovery solution in Azure that allows you to replicate workloads running on physical or virtual machines to a secondary location. ASR supports multiple types of failovers, including planned, unplanned, and test failover.

A planned failover is a planned migration of your production workloads to the secondary location. It is typically used when you need to perform maintenance on your primary site or when you want to test your disaster recovery plan. During a planned failover, you can choose to shut down your primary site after the failover is complete.

An unplanned failover occurs when a disaster strikes your primary site and you need to fail over to the secondary site to resume operations. This type of failover is typically used in emergency situations, such as a power outage, natural disaster, or cyberattack.

A test failover provides you with the opportunity to validate your ASR configuration in an isolated environment without any loss of data or significant effect on the production environment. During a test failover, your production workloads continue to run in the primary site, while a copy of those workloads is created in the secondary site for testing purposes. This allows you to verify that your disaster recovery plan works as expected without any risk to your production environment.

Finally, Preconfigured failover refers to a recovery plan that you can create in advance for automating and orchestrating a disaster recovery scenario.

In summary, a test failover is the best option for validating your Azure Site Recovery configuration in an isolated environment without any loss of data or significant effect on the production environment.