An organization is configuring a geographically separated secondary data center to maintain continuous operations for its mission-critical transactional database. The business requirement dictates a Recovery Point Objective (RPO) of zero and automatic failover without human intervention in the event of an site outage. Which of the following technical design choices and infrastructure components must be implemented to fulfill these specific requirements? (Select TWO.)
- Synchronous database replication across both sitesCevap
- Dynamic Global Server Load Balancing (GSLB) with automated health probes and low TTL DNS recordsCevap
- CDaily asynchronous storage snapshots backed up to air-gapped cloud storage
- DWarm site infrastructure configured with manual DNS record update playbooks
Cevap
The necessary technical controls are synchronous database replication and dynamic Global Server Load Balancing (GSLB) with automated health probes.
To achieve RPO = 0, data must be written simultaneously to both locations via synchronous replication. To achieve automated failover, GSLB with continuous health checks automatically updates routing paths when the primary endpoint fails to respond.
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Anahtar Kavram
High Availability and Active-Active Site Replication