CV0-002 · Question #517
A manufacturing company has the following DR requirements for its IaaS environment: - RPO of 24 hours - RTO of 8 hours The company experiences a disaster and has a two-site hot/cold configuration. Whi
The correct answer is C. Rebuild the site from the cold site, bring the site back online, and point users to it.. For a company with a hot/cold DR configuration and an 8-hour RTO after a disaster, the best recovery method involves rebuilding the site from the cold site.
Question
A manufacturing company has the following DR requirements for its IaaS environment:
- RPO of 24 hours
- RTO of 8 hours
The company experiences a disaster and has a two-site hot/cold configuration. Which of the following is the BEST way for the company to recover?
Options
- ARestore data from the archives on the hot site, point users to it, and resume operations.
- BBring the cold site online, point users to it, and resume operations.
- CRebuild the site from the cold site, bring the site back online, and point users to it.
- DReplicate data from the non-failed site to another cloud provider, point users to it, and
How the community answered
(58 responses)- A14% (8)
- B7% (4)
- C76% (44)
- D3% (2)
Why each option
For a company with a hot/cold DR configuration and an 8-hour RTO after a disaster, the best recovery method involves rebuilding the site from the cold site.
Restoring data from archives on the hot site is not feasible if the hot site has experienced a disaster and is presumably unavailable.
Merely 'bringing the cold site online' does not accurately reflect the extensive rebuilding and configuration efforts typically required to make a truly cold site operational.
A cold site configuration implies a dormant environment with minimal or no pre-configured resources, meaning significant work is required to 'rebuild' the infrastructure, deploy applications, and restore data before it can become operational and accept user traffic within the specified RTO. This approach aligns with the nature of a cold site and the need to meet the RTO target.
Replicating data to another cloud provider is an external step not inherent to a two-site hot/cold recovery plan and introduces an unnecessary additional location.
Concept tested: Disaster recovery strategies (hot/cold sites)
Source: https://learn.microsoft.com/en-us/azure/architecture/resiliency/disaster-recovery-dr-strategies
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