SG0-001 · Question #292
A customer's database environment includes remote synchronous mirroring across a DWDM link. Which two (2) business management requirements will be met by the implementation? (Choose two.)
The correct answer is C. continuity D. availability. Implementing remote synchronous mirroring across a DWDM link primarily fulfills business requirements for continuity and availability by providing a real-time, disaster-resilient replica of the database.
Question
A customer's database environment includes remote synchronous mirroring across a DWDM link. Which two (2) business management requirements will be met by the implementation? (Choose two.)
Options
- Acost
- Bservice
- Ccontinuity
- Davailability
- Econfiguration
How the community answered
(24 responses)- A4% (1)
- B8% (2)
- C88% (21)
Why each option
Implementing remote synchronous mirroring across a DWDM link primarily fulfills business requirements for continuity and availability by providing a real-time, disaster-resilient replica of the database.
Synchronous mirroring, especially with a dedicated DWDM link, is typically a high-cost solution due to infrastructure, licensing, and operational expenses, so it does not meet a requirement for low cost.
"Service" is a very broad term; while mirroring contributes to service quality by improving continuity and availability, "service" itself isn't a specific requirement met directly by the implementation of mirroring.
Remote synchronous mirroring provides business continuity by ensuring that a complete, up-to-date copy of the database is immediately available at a remote site, allowing for rapid failover in case of a disaster at the primary location.
Synchronous mirroring across a DWDM link provides high availability by maintaining an identical, real-time copy of data, minimizing downtime and data loss during outages or disasters, ensuring the database remains accessible.
While configuration is required for the implementation, the mirroring itself does not "meet" a business management requirement of "configuration"; configuration is a task, not a business outcome or goal.
Concept tested: Synchronous replication benefits for databases
Source: https://learn.microsoft.com/en-us/sql/sql-server/failover-clusters/windows/overview-of-always-on-availability-groups-sql-server
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