CV0-002 · Question #415
A company has implemented a dual-region (Region 1 and Region 2) cloud strategy from its current CSP. Both regions have the same data in them. Region 2 is experiencing an outage. Which of the…
The correct answer is D. Redirect users from Region 2 to Region 1. With a dual-region cloud strategy where both regions have identical data and one region experiences an outage, redirecting users to the healthy region is the most effective solution.
Question
A company has implemented a dual-region (Region 1 and Region 2) cloud strategy from its current CSP. Both regions have the same data in them. Region 2 is experiencing an outage. Which of the following is the BEST way to provide service to users in Region 2 during the outage while allowing access to the data?
Options
- ABring the backup instances online and provide Region 2 users access to their data.
- BAdd more network bandwidth to Region 2.
- CCopy Region 1 data to a location in Region 3 and have users access their data.
- DRedirect users from Region 2 to Region 1.
How the community answered
(46 responses)- A2% (1)
- B4% (2)
- D93% (43)
Why each option
With a dual-region cloud strategy where both regions have identical data and one region experiences an outage, redirecting users to the healthy region is the most effective solution.
Bringing backup instances online in an already-outaged Region 2 would not restore service, and if in another region, direct redirection to the active Region 1 is more efficient.
Adding network bandwidth to Region 2 will not resolve the underlying outage that is preventing service availability in that region.
Copying data from Region 1 to a new Region 3 is a time-consuming and unnecessary step when Region 1 already contains identical data and is fully operational.
Since Region 1 is operational and contains the same data as the failed Region 2, redirecting users from Region 2 to Region 1 immediately restores service and data access. This leverages the inherent redundancy of a dual-region strategy for rapid disaster recovery.
Concept tested: Multi-region disaster recovery
Source: https://docs.aws.amazon.com/whitepapers/latest/aws-fault-isolation-boundary-changes/multi-region-application-architecture.html
Topics
Community Discussion
No community discussion yet for this question.